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Finding the Fourth Proportional to 220,483.98, 304,262.10 and 124,990.56

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Solution

The fourth proportional to 220,483.98, 304,262.10 and 124,990.56 is: 172,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,483.98 : 304,262.10 = 124,990.56 : x
  2. Step 2: Convert to fraction form
    220,483.98/304,262.10 = 124,990.56/x
  3. Step 3: Cross multiply
    220,483.98x = 304,262.10 × 124,990.56
  4. Step 4: Simplify right side
    220,483.98x = 38,029,890,265.78
  5. Step 5: Solve for x
    x = 38,029,890,265.78/220,483.98
  6. Step 6: Final answer
    x = 172,483.69

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1.5x scale

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.