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Finding the Fourth Proportional to 425,141.76, 637,297.92 and 203,681.28

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Solution

The fourth proportional to 425,141.76, 637,297.92 and 203,681.28 is: 305,323.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,141.76 : 637,297.92 = 203,681.28 : x
  2. Step 2: Convert to fraction form
    425,141.76/637,297.92 = 203,681.28/x
  3. Step 3: Cross multiply
    425,141.76x = 637,297.92 × 203,681.28
  4. Step 4: Simplify right side
    425,141.76x = 129,805,656,086.94
  5. Step 5: Solve for x
    x = 129,805,656,086.94/425,141.76
  6. Step 6: Final answer
    x = 305,323.23

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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.