Home / 254,211.20-381,316.80-147,777.20

Finding the Fourth Proportional to 254,211.20, 381,316.80 and 147,777.20

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Solution

The fourth proportional to 254,211.20, 381,316.80 and 147,777.20 is: 221,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,211.20 : 381,316.80 = 147,777.20 : x
  2. Step 2: Convert to fraction form
    254,211.20/381,316.80 = 147,777.20/x
  3. Step 3: Cross multiply
    254,211.20x = 381,316.80 × 147,777.20
  4. Step 4: Simplify right side
    254,211.20x = 56,349,929,016.96
  5. Step 5: Solve for x
    x = 56,349,929,016.96/254,211.20
  6. Step 6: Final answer
    x = 221,665.80

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Similar ratio
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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.