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Finding the Fourth Proportional to 472,346.10, 708,446.10 and 172,756.62

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Solution

The fourth proportional to 472,346.10, 708,446.10 and 172,756.62 is: 259,108.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,346.10 : 708,446.10 = 172,756.62 : x
  2. Step 2: Convert to fraction form
    472,346.10/708,446.10 = 172,756.62/x
  3. Step 3: Cross multiply
    472,346.10x = 708,446.10 × 172,756.62
  4. Step 4: Simplify right side
    472,346.10x = 122,388,753,688.18
  5. Step 5: Solve for x
    x = 122,388,753,688.18/472,346.10
  6. Step 6: Final answer
    x = 259,108.21

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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.