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Finding the Fourth Proportional to 303,410.10, 455,115.15 and 268,418.10

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Solution

The fourth proportional to 303,410.10, 455,115.15 and 268,418.10 is: 402,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,410.10 : 455,115.15 = 268,418.10 : x
  2. Step 2: Convert to fraction form
    303,410.10/455,115.15 = 268,418.10/x
  3. Step 3: Cross multiply
    303,410.10x = 455,115.15 × 268,418.10
  4. Step 4: Simplify right side
    303,410.10x = 122,161,143,844.22
  5. Step 5: Solve for x
    x = 122,161,143,844.22/303,410.10
  6. Step 6: Final answer
    x = 402,627.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.