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Finding the Fourth Proportional to 220,499.80, 304,264.38 and 124,987.48

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Solution

The fourth proportional to 220,499.80, 304,264.38 and 124,987.48 is: 172,468.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,499.80 : 304,264.38 = 124,987.48 : x
  2. Step 2: Convert to fraction form
    220,499.80/304,264.38 = 124,987.48/x
  3. Step 3: Cross multiply
    220,499.80x = 304,264.38 × 124,987.48
  4. Step 4: Simplify right side
    220,499.80x = 38,029,238,109.96
  5. Step 5: Solve for x
    x = 38,029,238,109.96/220,499.80
  6. Step 6: Final answer
    x = 172,468.36

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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.