Home / 218,814.28-328,090.19-100,337.20

Finding the Fourth Proportional to 218,814.28, 328,090.19 and 100,337.20

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Solution

The fourth proportional to 218,814.28, 328,090.19 and 100,337.20 is: 150,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,814.28 : 328,090.19 = 100,337.20 : x
  2. Step 2: Convert to fraction form
    218,814.28/328,090.19 = 100,337.20/x
  3. Step 3: Cross multiply
    218,814.28x = 328,090.19 × 100,337.20
  4. Step 4: Simplify right side
    218,814.28x = 32,919,649,690.16
  5. Step 5: Solve for x
    x = 32,919,649,690.16/218,814.28
  6. Step 6: Final answer
    x = 150,445.62

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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.