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Finding the Fourth Proportional to 303,872.10, 455,808.15 and 268,880.10

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Solution

The fourth proportional to 303,872.10, 455,808.15 and 268,880.10 is: 403,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,872.10 : 455,808.15 = 268,880.10 : x
  2. Step 2: Convert to fraction form
    303,872.10/455,808.15 = 268,880.10/x
  3. Step 3: Cross multiply
    303,872.10x = 455,808.15 × 268,880.10
  4. Step 4: Simplify right side
    303,872.10x = 122,557,740,952.82
  5. Step 5: Solve for x
    x = 122,557,740,952.82/303,872.10
  6. Step 6: Final answer
    x = 403,320.15

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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.