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Finding the Fourth Proportional to 312,359.71, 468,539.56 and 75,702.39

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Solution

The fourth proportional to 312,359.71, 468,539.56 and 75,702.39 is: 113,553.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,359.71 : 468,539.56 = 75,702.39 : x
  2. Step 2: Convert to fraction form
    312,359.71/468,539.56 = 75,702.39/x
  3. Step 3: Cross multiply
    312,359.71x = 468,539.56 × 75,702.39
  4. Step 4: Simplify right side
    312,359.71x = 35,469,564,123.04
  5. Step 5: Solve for x
    x = 35,469,564,123.04/312,359.71
  6. Step 6: Final answer
    x = 113,553.58

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1.5x scale

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.