Home / 254,541.40-381,812.10-149,306.20

Finding the Fourth Proportional to 254,541.40, 381,812.10 and 149,306.20

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Solution

The fourth proportional to 254,541.40, 381,812.10 and 149,306.20 is: 223,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,541.40 : 381,812.10 = 149,306.20 : x
  2. Step 2: Convert to fraction form
    254,541.40/381,812.10 = 149,306.20/x
  3. Step 3: Cross multiply
    254,541.40x = 381,812.10 × 149,306.20
  4. Step 4: Simplify right side
    254,541.40x = 57,006,913,765.02
  5. Step 5: Solve for x
    x = 57,006,913,765.02/254,541.40
  6. Step 6: Final answer
    x = 223,959.30

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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.