Home / 385,538.90-532,043.60-215,773.02

Finding the Fourth Proportional to 385,538.90, 532,043.60 and 215,773.02

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Solution

The fourth proportional to 385,538.90, 532,043.60 and 215,773.02 is: 297,766.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,538.90 : 532,043.60 = 215,773.02 : x
  2. Step 2: Convert to fraction form
    385,538.90/532,043.60 = 215,773.02/x
  3. Step 3: Cross multiply
    385,538.90x = 532,043.60 × 215,773.02
  4. Step 4: Simplify right side
    385,538.90x = 114,800,654,343.67
  5. Step 5: Solve for x
    x = 114,800,654,343.67/385,538.90
  6. Step 6: Final answer
    x = 297,766.72

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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.