Home / 220,845.90-304,768.80-125,354.20

Finding the Fourth Proportional to 220,845.90, 304,768.80 and 125,354.20

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Solution

The fourth proportional to 220,845.90, 304,768.80 and 125,354.20 is: 172,989.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,845.90 : 304,768.80 = 125,354.20 : x
  2. Step 2: Convert to fraction form
    220,845.90/304,768.80 = 125,354.20/x
  3. Step 3: Cross multiply
    220,845.90x = 304,768.80 × 125,354.20
  4. Step 4: Simplify right side
    220,845.90x = 38,204,049,108.96
  5. Step 5: Solve for x
    x = 38,204,049,108.96/220,845.90
  6. Step 6: Final answer
    x = 172,989.62

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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.