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Finding the Fourth Proportional to 485,103.84, 669,443.67 and 270,244.44

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Solution

The fourth proportional to 485,103.84, 669,443.67 and 270,244.44 is: 372,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,103.84 : 669,443.67 = 270,244.44 : x
  2. Step 2: Convert to fraction form
    485,103.84/669,443.67 = 270,244.44/x
  3. Step 3: Cross multiply
    485,103.84x = 669,443.67 × 270,244.44
  4. Step 4: Simplify right side
    485,103.84x = 180,913,429,710.70
  5. Step 5: Solve for x
    x = 180,913,429,710.70/485,103.84
  6. Step 6: Final answer
    x = 372,937.53

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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.