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Finding the Fourth Proportional to 143,818.96, 215,713.84 and 38,624.28

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Solution

The fourth proportional to 143,818.96, 215,713.84 and 38,624.28 is: 57,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,818.96 : 215,713.84 = 38,624.28 : x
  2. Step 2: Convert to fraction form
    143,818.96/215,713.84 = 38,624.28/x
  3. Step 3: Cross multiply
    143,818.96x = 215,713.84 × 38,624.28
  4. Step 4: Simplify right side
    143,818.96x = 8,331,791,756.04
  5. Step 5: Solve for x
    x = 8,331,791,756.04/143,818.96
  6. Step 6: Final answer
    x = 57,932.50

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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.