Home / 418,711.52-628,275.06-165,986.66

Finding the Fourth Proportional to 418,711.52, 628,275.06 and 165,986.66

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Solution

The fourth proportional to 418,711.52, 628,275.06 and 165,986.66 is: 249,062.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,711.52 : 628,275.06 = 165,986.66 : x
  2. Step 2: Convert to fraction form
    418,711.52/628,275.06 = 165,986.66/x
  3. Step 3: Cross multiply
    418,711.52x = 628,275.06 × 165,986.66
  4. Step 4: Simplify right side
    418,711.52x = 104,285,278,770.70
  5. Step 5: Solve for x
    x = 104,285,278,770.70/418,711.52
  6. Step 6: Final answer
    x = 249,062.36

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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.