Home / 502,218.27-753,327.40-221,679.63

Finding the Fourth Proportional to 502,218.27, 753,327.40 and 221,679.63

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Solution

The fourth proportional to 502,218.27, 753,327.40 and 221,679.63 is: 332,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,218.27 : 753,327.40 = 221,679.63 : x
  2. Step 2: Convert to fraction form
    502,218.27/753,327.40 = 221,679.63/x
  3. Step 3: Cross multiply
    502,218.27x = 753,327.40 × 221,679.63
  4. Step 4: Simplify right side
    502,218.27x = 166,997,339,300.86
  5. Step 5: Solve for x
    x = 166,997,339,300.86/502,218.27
  6. Step 6: Final answer
    x = 332,519.44

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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.