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Finding the Fourth Proportional to 425,231.31, 637,526.24 and 256,711.58

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Solution

The fourth proportional to 425,231.31, 637,526.24 and 256,711.58 is: 384,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,231.31 : 637,526.24 = 256,711.58 : x
  2. Step 2: Convert to fraction form
    425,231.31/637,526.24 = 256,711.58/x
  3. Step 3: Cross multiply
    425,231.31x = 637,526.24 × 256,711.58
  4. Step 4: Simplify right side
    425,231.31x = 163,660,368,688.07
  5. Step 5: Solve for x
    x = 163,660,368,688.07/425,231.31
  6. Step 6: Final answer
    x = 384,873.75

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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.