Home / 385,326.28-577,839.66-132,558.76

Finding the Fourth Proportional to 385,326.28, 577,839.66 and 132,558.76

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Solution

The fourth proportional to 385,326.28, 577,839.66 and 132,558.76 is: 198,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,326.28 : 577,839.66 = 132,558.76 : x
  2. Step 2: Convert to fraction form
    385,326.28/577,839.66 = 132,558.76/x
  3. Step 3: Cross multiply
    385,326.28x = 577,839.66 × 132,558.76
  4. Step 4: Simplify right side
    385,326.28x = 76,597,708,808.42
  5. Step 5: Solve for x
    x = 76,597,708,808.42/385,326.28
  6. Step 6: Final answer
    x = 198,786.62

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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.