Home / 215,934.30-323,901.45-141,138.90

Finding the Fourth Proportional to 215,934.30, 323,901.45 and 141,138.90

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Solution

The fourth proportional to 215,934.30, 323,901.45 and 141,138.90 is: 211,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,934.30 : 323,901.45 = 141,138.90 : x
  2. Step 2: Convert to fraction form
    215,934.30/323,901.45 = 141,138.90/x
  3. Step 3: Cross multiply
    215,934.30x = 323,901.45 × 141,138.90
  4. Step 4: Simplify right side
    215,934.30x = 45,715,094,361.41
  5. Step 5: Solve for x
    x = 45,715,094,361.41/215,934.30
  6. Step 6: Final answer
    x = 211,708.35

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1.5x scale

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.