Home / 329,693.18-454,162.21-281,137.12

Finding the Fourth Proportional to 329,693.18, 454,162.21 and 281,137.12

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Solution

The fourth proportional to 329,693.18, 454,162.21 and 281,137.12 is: 387,274.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,693.18 : 454,162.21 = 281,137.12 : x
  2. Step 2: Convert to fraction form
    329,693.18/454,162.21 = 281,137.12/x
  3. Step 3: Cross multiply
    329,693.18x = 454,162.21 × 281,137.12
  4. Step 4: Simplify right side
    329,693.18x = 127,681,853,893.99
  5. Step 5: Solve for x
    x = 127,681,853,893.99/329,693.18
  6. Step 6: Final answer
    x = 387,274.79

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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.