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Finding the Fourth Proportional to 508,752.90, 763,141.50 and 153,765.54

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Solution

The fourth proportional to 508,752.90, 763,141.50 and 153,765.54 is: 230,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,752.90 : 763,141.50 = 153,765.54 : x
  2. Step 2: Convert to fraction form
    508,752.90/763,141.50 = 153,765.54/x
  3. Step 3: Cross multiply
    508,752.90x = 763,141.50 × 153,765.54
  4. Step 4: Simplify right side
    508,752.90x = 117,344,864,843.91
  5. Step 5: Solve for x
    x = 117,344,864,843.91/508,752.90
  6. Step 6: Final answer
    x = 230,651.98

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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.