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Finding the Fourth Proportional to 281,233.32, 387,697.86 and 200,520.48

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Solution

The fourth proportional to 281,233.32, 387,697.86 and 200,520.48 is: 276,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,233.32 : 387,697.86 = 200,520.48 : x
  2. Step 2: Convert to fraction form
    281,233.32/387,697.86 = 200,520.48/x
  3. Step 3: Cross multiply
    281,233.32x = 387,697.86 × 200,520.48
  4. Step 4: Simplify right side
    281,233.32x = 77,741,360,982.17
  5. Step 5: Solve for x
    x = 77,741,360,982.17/281,233.32
  6. Step 6: Final answer
    x = 276,430.12

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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.