Home / 217,657.60-300,387.52-127,006.72

Finding the Fourth Proportional to 217,657.60, 300,387.52 and 127,006.72

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Solution

The fourth proportional to 217,657.60, 300,387.52 and 127,006.72 is: 175,280.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,657.60 : 300,387.52 = 127,006.72 : x
  2. Step 2: Convert to fraction form
    217,657.60/300,387.52 = 127,006.72/x
  3. Step 3: Cross multiply
    217,657.60x = 300,387.52 × 127,006.72
  4. Step 4: Simplify right side
    217,657.60x = 38,151,233,644.13
  5. Step 5: Solve for x
    x = 38,151,233,644.13/217,657.60
  6. Step 6: Final answer
    x = 175,280.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.