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Finding the Fourth Proportional to 318,753.86, 439,890.01 and 175,519.04

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Solution

The fourth proportional to 318,753.86, 439,890.01 and 175,519.04 is: 242,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,753.86 : 439,890.01 = 175,519.04 : x
  2. Step 2: Convert to fraction form
    318,753.86/439,890.01 = 175,519.04/x
  3. Step 3: Cross multiply
    318,753.86x = 439,890.01 × 175,519.04
  4. Step 4: Simplify right side
    318,753.86x = 77,209,069,622.54
  5. Step 5: Solve for x
    x = 77,209,069,622.54/318,753.86
  6. Step 6: Final answer
    x = 242,221.60

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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.