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Finding the Fourth Proportional to 285,610.11, 428,672.15 and 152,604.06

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Solution

The fourth proportional to 285,610.11, 428,672.15 and 152,604.06 is: 229,043.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,610.11 : 428,672.15 = 152,604.06 : x
  2. Step 2: Convert to fraction form
    285,610.11/428,672.15 = 152,604.06/x
  3. Step 3: Cross multiply
    285,610.11x = 428,672.15 × 152,604.06
  4. Step 4: Simplify right side
    285,610.11x = 65,417,109,735.91
  5. Step 5: Solve for x
    x = 65,417,109,735.91/285,610.11
  6. Step 6: Final answer
    x = 229,043.40

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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.