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Finding the Fourth Proportional to 402,231.02, 603,346.16 and 102,711.65

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Solution

The fourth proportional to 402,231.02, 603,346.16 and 102,711.65 is: 154,067.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,231.02 : 603,346.16 = 102,711.65 : x
  2. Step 2: Convert to fraction form
    402,231.02/603,346.16 = 102,711.65/x
  3. Step 3: Cross multiply
    402,231.02x = 603,346.16 × 102,711.65
  4. Step 4: Simplify right side
    402,231.02x = 61,970,676,084.48
  5. Step 5: Solve for x
    x = 61,970,676,084.48/402,231.02
  6. Step 6: Final answer
    x = 154,067.37

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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.