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Finding the Fourth Proportional to 318,423.25, 439,423.43 and 175,182.95

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Solution

The fourth proportional to 318,423.25, 439,423.43 and 175,182.95 is: 241,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,423.25 : 439,423.43 = 175,182.95 : x
  2. Step 2: Convert to fraction form
    318,423.25/439,423.43 = 175,182.95/x
  3. Step 3: Cross multiply
    318,423.25x = 439,423.43 × 175,182.95
  4. Step 4: Simplify right side
    318,423.25x = 76,979,493,974.57
  5. Step 5: Solve for x
    x = 76,979,493,974.57/318,423.25
  6. Step 6: Final answer
    x = 241,752.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.