Home / 281,231.28-387,695.52-200,518.92

Finding the Fourth Proportional to 281,231.28, 387,695.52 and 200,518.92

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Solution

The fourth proportional to 281,231.28, 387,695.52 and 200,518.92 is: 276,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,231.28 : 387,695.52 = 200,518.92 : x
  2. Step 2: Convert to fraction form
    281,231.28/387,695.52 = 200,518.92/x
  3. Step 3: Cross multiply
    281,231.28x = 387,695.52 × 200,518.92
  4. Step 4: Simplify right side
    281,231.28x = 77,740,286,959.24
  5. Step 5: Solve for x
    x = 77,740,286,959.24/281,231.28
  6. Step 6: Final answer
    x = 276,428.31

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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.