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Finding the Fourth Proportional to 383,789.34, 575,688.87 and 103,306.59

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Solution

The fourth proportional to 383,789.34, 575,688.87 and 103,306.59 is: 154,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,789.34 : 575,688.87 = 103,306.59 : x
  2. Step 2: Convert to fraction form
    383,789.34/575,688.87 = 103,306.59/x
  3. Step 3: Cross multiply
    383,789.34x = 575,688.87 × 103,306.59
  4. Step 4: Simplify right side
    383,789.34x = 59,472,454,060.65
  5. Step 5: Solve for x
    x = 59,472,454,060.65/383,789.34
  6. Step 6: Final answer
    x = 154,961.19

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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.