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Finding the Fourth Proportional to 247,201.20, 370,801.80 and 60,212.70

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Solution

The fourth proportional to 247,201.20, 370,801.80 and 60,212.70 is: 90,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,201.20 : 370,801.80 = 60,212.70 : x
  2. Step 2: Convert to fraction form
    247,201.20/370,801.80 = 60,212.70/x
  3. Step 3: Cross multiply
    247,201.20x = 370,801.80 × 60,212.70
  4. Step 4: Simplify right side
    247,201.20x = 22,326,977,542.86
  5. Step 5: Solve for x
    x = 22,326,977,542.86/247,201.20
  6. Step 6: Final answer
    x = 90,319.05

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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.