Home / 203,765.28-281,240.10-155,492.64

Finding the Fourth Proportional to 203,765.28, 281,240.10 and 155,492.64

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Solution

The fourth proportional to 203,765.28, 281,240.10 and 155,492.64 is: 214,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,765.28 : 281,240.10 = 155,492.64 : x
  2. Step 2: Convert to fraction form
    203,765.28/281,240.10 = 155,492.64/x
  3. Step 3: Cross multiply
    203,765.28x = 281,240.10 × 155,492.64
  4. Step 4: Simplify right side
    203,765.28x = 43,730,765,622.86
  5. Step 5: Solve for x
    x = 43,730,765,622.86/203,765.28
  6. Step 6: Final answer
    x = 214,613.43

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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.