Home / 220,553.16-304,432.74-125,123.28

Finding the Fourth Proportional to 220,553.16, 304,432.74 and 125,123.28

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Solution

The fourth proportional to 220,553.16, 304,432.74 and 125,123.28 is: 172,709.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,553.16 : 304,432.74 = 125,123.28 : x
  2. Step 2: Convert to fraction form
    220,553.16/304,432.74 = 125,123.28/x
  3. Step 3: Cross multiply
    220,553.16x = 304,432.74 × 125,123.28
  4. Step 4: Simplify right side
    220,553.16x = 38,091,622,968.19
  5. Step 5: Solve for x
    x = 38,091,622,968.19/220,553.16
  6. Step 6: Final answer
    x = 172,709.49

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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.