Home / 281,014.55-387,862.36-193,921.89

Finding the Fourth Proportional to 281,014.55, 387,862.36 and 193,921.89

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Solution

The fourth proportional to 281,014.55, 387,862.36 and 193,921.89 is: 267,655.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,014.55 : 387,862.36 = 193,921.89 : x
  2. Step 2: Convert to fraction form
    281,014.55/387,862.36 = 193,921.89/x
  3. Step 3: Cross multiply
    281,014.55x = 387,862.36 × 193,921.89
  4. Step 4: Simplify right side
    281,014.55x = 75,215,000,551.30
  5. Step 5: Solve for x
    x = 75,215,000,551.30/281,014.55
  6. Step 6: Final answer
    x = 267,655.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.