Home / 218,814.09-328,089.92-100,337.01

Finding the Fourth Proportional to 218,814.09, 328,089.92 and 100,337.01

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Solution

The fourth proportional to 218,814.09, 328,089.92 and 100,337.01 is: 150,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,814.09 : 328,089.92 = 100,337.01 : x
  2. Step 2: Convert to fraction form
    218,814.09/328,089.92 = 100,337.01/x
  3. Step 3: Cross multiply
    218,814.09x = 328,089.92 × 100,337.01
  4. Step 4: Simplify right side
    218,814.09x = 32,919,561,082.25
  5. Step 5: Solve for x
    x = 32,919,561,082.25/218,814.09
  6. Step 6: Final answer
    x = 150,445.34

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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.