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Finding the Fourth Proportional to 220,498.80, 304,263 and 124,986.48

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Solution

The fourth proportional to 220,498.80, 304,263 and 124,986.48 is: 172,466.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,498.80 : 304,263 = 124,986.48 : x
  2. Step 2: Convert to fraction form
    220,498.80/304,263 = 124,986.48/x
  3. Step 3: Cross multiply
    220,498.80x = 304,263 × 124,986.48
  4. Step 4: Simplify right side
    220,498.80x = 38,028,761,364.24
  5. Step 5: Solve for x
    x = 38,028,761,364.24/220,498.80
  6. Step 6: Final answer
    x = 172,466.98

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