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Finding the Fourth Proportional to 291,227.49, 402,017.92 and 195,789.53

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Solution

The fourth proportional to 291,227.49, 402,017.92 and 195,789.53 is: 270,272.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,227.49 : 402,017.92 = 195,789.53 : x
  2. Step 2: Convert to fraction form
    291,227.49/402,017.92 = 195,789.53/x
  3. Step 3: Cross multiply
    291,227.49x = 402,017.92 × 195,789.53
  4. Step 4: Simplify right side
    291,227.49x = 78,710,900,123.95
  5. Step 5: Solve for x
    x = 78,710,900,123.95/291,227.49
  6. Step 6: Final answer
    x = 270,272.91

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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.