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Finding the Fourth Proportional to 371,770.76, 557,655.02 and 105,531.50

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Solution

The fourth proportional to 371,770.76, 557,655.02 and 105,531.50 is: 158,296.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,770.76 : 557,655.02 = 105,531.50 : x
  2. Step 2: Convert to fraction form
    371,770.76/557,655.02 = 105,531.50/x
  3. Step 3: Cross multiply
    371,770.76x = 557,655.02 × 105,531.50
  4. Step 4: Simplify right side
    371,770.76x = 58,850,170,743.13
  5. Step 5: Solve for x
    x = 58,850,170,743.13/371,770.76
  6. Step 6: Final answer
    x = 158,296.93

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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.