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Finding the Fourth Proportional to 170,729.40, 255,510.90 and 149,734.20

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Solution

The fourth proportional to 170,729.40, 255,510.90 and 149,734.20 is: 224,089.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,729.40 : 255,510.90 = 149,734.20 : x
  2. Step 2: Convert to fraction form
    170,729.40/255,510.90 = 149,734.20/x
  3. Step 3: Cross multiply
    170,729.40x = 255,510.90 × 149,734.20
  4. Step 4: Simplify right side
    170,729.40x = 38,258,720,202.78
  5. Step 5: Solve for x
    x = 38,258,720,202.78/170,729.40
  6. Step 6: Final answer
    x = 224,089.82

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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.