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Finding the Fourth Proportional to 220,765.80, 304,647.76 and 125,270.48

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Solution

The fourth proportional to 220,765.80, 304,647.76 and 125,270.48 is: 172,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,765.80 : 304,647.76 = 125,270.48 : x
  2. Step 2: Convert to fraction form
    220,765.80/304,647.76 = 125,270.48/x
  3. Step 3: Cross multiply
    220,765.80x = 304,647.76 × 125,270.48
  4. Step 4: Simplify right side
    220,765.80x = 38,163,371,126.12
  5. Step 5: Solve for x
    x = 38,163,371,126.12/220,765.80
  6. Step 6: Final answer
    x = 172,868.13

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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.