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Finding the Fourth Proportional to 425,614.53, 637,295.49 and 256,909.35

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Solution

The fourth proportional to 425,614.53, 637,295.49 and 256,909.35 is: 384,684.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,614.53 : 637,295.49 = 256,909.35 : x
  2. Step 2: Convert to fraction form
    425,614.53/637,295.49 = 256,909.35/x
  3. Step 3: Cross multiply
    425,614.53x = 637,295.49 × 256,909.35
  4. Step 4: Simplify right side
    425,614.53x = 163,727,170,093.83
  5. Step 5: Solve for x
    x = 163,727,170,093.83/425,614.53
  6. Step 6: Final answer
    x = 384,684.17

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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.