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Finding the Fourth Proportional to 220,912.92, 304,868.46 and 125,428.50

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Solution

The fourth proportional to 220,912.92, 304,868.46 and 125,428.50 is: 173,096.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,912.92 : 304,868.46 = 125,428.50 : x
  2. Step 2: Convert to fraction form
    220,912.92/304,868.46 = 125,428.50/x
  3. Step 3: Cross multiply
    220,912.92x = 304,868.46 × 125,428.50
  4. Step 4: Simplify right side
    220,912.92x = 38,239,193,635.11
  5. Step 5: Solve for x
    x = 38,239,193,635.11/220,912.92
  6. Step 6: Final answer
    x = 173,096.23

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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.