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Finding the Fourth Proportional to 355,288.10, 532,932.15 and 256,144.10

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Solution

The fourth proportional to 355,288.10, 532,932.15 and 256,144.10 is: 384,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,288.10 : 532,932.15 = 256,144.10 : x
  2. Step 2: Convert to fraction form
    355,288.10/532,932.15 = 256,144.10/x
  3. Step 3: Cross multiply
    355,288.10x = 532,932.15 × 256,144.10
  4. Step 4: Simplify right side
    355,288.10x = 136,507,425,922.82
  5. Step 5: Solve for x
    x = 136,507,425,922.82/355,288.10
  6. Step 6: Final answer
    x = 384,216.15

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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.