Home / 521,422.20-782,133.30-166,462.20

Finding the Fourth Proportional to 521,422.20, 782,133.30 and 166,462.20

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Solution

The fourth proportional to 521,422.20, 782,133.30 and 166,462.20 is: 249,693.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,422.20 : 782,133.30 = 166,462.20 : x
  2. Step 2: Convert to fraction form
    521,422.20/782,133.30 = 166,462.20/x
  3. Step 3: Cross multiply
    521,422.20x = 782,133.30 × 166,462.20
  4. Step 4: Simplify right side
    521,422.20x = 130,195,629,811.26
  5. Step 5: Solve for x
    x = 130,195,629,811.26/521,422.20
  6. Step 6: Final answer
    x = 249,693.30

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Double scale
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Similar ratio
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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.