Home / 521,196.60-781,190.10-240,742.20

Finding the Fourth Proportional to 521,196.60, 781,190.10 and 240,742.20

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Solution

The fourth proportional to 521,196.60, 781,190.10 and 240,742.20 is: 360,833.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,196.60 : 781,190.10 = 240,742.20 : x
  2. Step 2: Convert to fraction form
    521,196.60/781,190.10 = 240,742.20/x
  3. Step 3: Cross multiply
    521,196.60x = 781,190.10 × 240,742.20
  4. Step 4: Simplify right side
    521,196.60x = 188,065,423,292.22
  5. Step 5: Solve for x
    x = 188,065,423,292.22/521,196.60
  6. Step 6: Final answer
    x = 360,833.94

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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.