Home / 521,531.40-782,297.10-166,581.30

Finding the Fourth Proportional to 521,531.40, 782,297.10 and 166,581.30

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Solution

The fourth proportional to 521,531.40, 782,297.10 and 166,581.30 is: 249,871.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,531.40 : 782,297.10 = 166,581.30 : x
  2. Step 2: Convert to fraction form
    521,531.40/782,297.10 = 166,581.30/x
  3. Step 3: Cross multiply
    521,531.40x = 782,297.10 × 166,581.30
  4. Step 4: Simplify right side
    521,531.40x = 130,316,067,904.23
  5. Step 5: Solve for x
    x = 130,316,067,904.23/521,531.40
  6. Step 6: Final answer
    x = 249,871.95

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Similar ratio
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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.