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Finding the Fourth Proportional to 371,770.75, 557,655.03 and 105,531.49

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Solution

The fourth proportional to 371,770.75, 557,655.03 and 105,531.49 is: 158,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,770.75 : 557,655.03 = 105,531.49 : x
  2. Step 2: Convert to fraction form
    371,770.75/557,655.03 = 105,531.49/x
  3. Step 3: Cross multiply
    371,770.75x = 557,655.03 × 105,531.49
  4. Step 4: Simplify right side
    371,770.75x = 58,850,166,221.89
  5. Step 5: Solve for x
    x = 58,850,166,221.89/371,770.75
  6. Step 6: Final answer
    x = 158,296.92

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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.