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Finding the Fourth Proportional to 492,252.87, 738,208.52 and 172,397.68

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Solution

The fourth proportional to 492,252.87, 738,208.52 and 172,397.68 is: 258,536.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,252.87 : 738,208.52 = 172,397.68 : x
  2. Step 2: Convert to fraction form
    492,252.87/738,208.52 = 172,397.68/x
  3. Step 3: Cross multiply
    492,252.87x = 738,208.52 × 172,397.68
  4. Step 4: Simplify right side
    492,252.87x = 127,265,435,908.62
  5. Step 5: Solve for x
    x = 127,265,435,908.62/492,252.87
  6. Step 6: Final answer
    x = 258,536.71

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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.