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Finding the Fourth Proportional to 350,146.50, 525,220.39 and 87,490.50

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Solution

The fourth proportional to 350,146.50, 525,220.39 and 87,490.50 is: 131,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,146.50 : 525,220.39 = 87,490.50 : x
  2. Step 2: Convert to fraction form
    350,146.50/525,220.39 = 87,490.50/x
  3. Step 3: Cross multiply
    350,146.50x = 525,220.39 × 87,490.50
  4. Step 4: Simplify right side
    350,146.50x = 45,951,794,531.30
  5. Step 5: Solve for x
    x = 45,951,794,531.30/350,146.50
  6. Step 6: Final answer
    x = 131,235.91

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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.