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Finding the Fourth Proportional to 385,118.79, 577,536.71 and 132,327.56

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Solution

The fourth proportional to 385,118.79, 577,536.71 and 132,327.56 is: 198,442.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,118.79 : 577,536.71 = 132,327.56 : x
  2. Step 2: Convert to fraction form
    385,118.79/577,536.71 = 132,327.56/x
  3. Step 3: Cross multiply
    385,118.79x = 577,536.71 × 132,327.56
  4. Step 4: Simplify right side
    385,118.79x = 76,424,023,644.73
  5. Step 5: Solve for x
    x = 76,424,023,644.73/385,118.79
  6. Step 6: Final answer
    x = 198,442.73

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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.