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Finding the Fourth Proportional to 154,574.80, 231,862.20 and 75,648.40

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Solution

The fourth proportional to 154,574.80, 231,862.20 and 75,648.40 is: 113,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,574.80 : 231,862.20 = 75,648.40 : x
  2. Step 2: Convert to fraction form
    154,574.80/231,862.20 = 75,648.40/x
  3. Step 3: Cross multiply
    154,574.80x = 231,862.20 × 75,648.40
  4. Step 4: Simplify right side
    154,574.80x = 17,540,004,450.48
  5. Step 5: Solve for x
    x = 17,540,004,450.48/154,574.80
  6. Step 6: Final answer
    x = 113,472.60

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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.