Home / 281,252.28-387,724.50-200,539.92

Finding the Fourth Proportional to 281,252.28, 387,724.50 and 200,539.92

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Solution

The fourth proportional to 281,252.28, 387,724.50 and 200,539.92 is: 276,457.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,252.28 : 387,724.50 = 200,539.92 : x
  2. Step 2: Convert to fraction form
    281,252.28/387,724.50 = 200,539.92/x
  3. Step 3: Cross multiply
    281,252.28x = 387,724.50 × 200,539.92
  4. Step 4: Simplify right side
    281,252.28x = 77,754,240,212.04
  5. Step 5: Solve for x
    x = 77,754,240,212.04/281,252.28
  6. Step 6: Final answer
    x = 276,457.28

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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.