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Finding the Fourth Proportional to 472,512.80, 708,769.20 and 156,969.71

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Solution

The fourth proportional to 472,512.80, 708,769.20 and 156,969.71 is: 235,454.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,512.80 : 708,769.20 = 156,969.71 : x
  2. Step 2: Convert to fraction form
    472,512.80/708,769.20 = 156,969.71/x
  3. Step 3: Cross multiply
    472,512.80x = 708,769.20 × 156,969.71
  4. Step 4: Simplify right side
    472,512.80x = 111,255,295,780.93
  5. Step 5: Solve for x
    x = 111,255,295,780.93/472,512.80
  6. Step 6: Final answer
    x = 235,454.57

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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.