Home / 385,726.59-532,299.20-215,963.55

Finding the Fourth Proportional to 385,726.59, 532,299.20 and 215,963.55

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Solution

The fourth proportional to 385,726.59, 532,299.20 and 215,963.55 is: 298,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,726.59 : 532,299.20 = 215,963.55 : x
  2. Step 2: Convert to fraction form
    385,726.59/532,299.20 = 215,963.55/x
  3. Step 3: Cross multiply
    385,726.59x = 532,299.20 × 215,963.55
  4. Step 4: Simplify right side
    385,726.59x = 114,957,223,814.34
  5. Step 5: Solve for x
    x = 114,957,223,814.34/385,726.59
  6. Step 6: Final answer
    x = 298,027.74

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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.