Home / 219,425.43-328,941.09-79,151.25

Finding the Fourth Proportional to 219,425.43, 328,941.09 and 79,151.25

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Solution

The fourth proportional to 219,425.43, 328,941.09 and 79,151.25 is: 118,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,425.43 : 328,941.09 = 79,151.25 : x
  2. Step 2: Convert to fraction form
    219,425.43/328,941.09 = 79,151.25/x
  3. Step 3: Cross multiply
    219,425.43x = 328,941.09 × 79,151.25
  4. Step 4: Simplify right side
    219,425.43x = 26,036,098,449.86
  5. Step 5: Solve for x
    x = 26,036,098,449.86/219,425.43
  6. Step 6: Final answer
    x = 118,655.79

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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.