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Finding the Fourth Proportional to 221,510.20, 332,265.30 and 137,529.40

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Solution

The fourth proportional to 221,510.20, 332,265.30 and 137,529.40 is: 206,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,510.20 : 332,265.30 = 137,529.40 : x
  2. Step 2: Convert to fraction form
    221,510.20/332,265.30 = 137,529.40/x
  3. Step 3: Cross multiply
    221,510.20x = 332,265.30 × 137,529.40
  4. Step 4: Simplify right side
    221,510.20x = 45,696,247,349.82
  5. Step 5: Solve for x
    x = 45,696,247,349.82/221,510.20
  6. Step 6: Final answer
    x = 206,294.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.