Home / 285,311.04-393,724.42-157,983.90

Finding the Fourth Proportional to 285,311.04, 393,724.42 and 157,983.90

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Solution

The fourth proportional to 285,311.04, 393,724.42 and 157,983.90 is: 218,015.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,311.04 : 393,724.42 = 157,983.90 : x
  2. Step 2: Convert to fraction form
    285,311.04/393,724.42 = 157,983.90/x
  3. Step 3: Cross multiply
    285,311.04x = 393,724.42 × 157,983.90
  4. Step 4: Simplify right side
    285,311.04x = 62,202,119,396.84
  5. Step 5: Solve for x
    x = 62,202,119,396.84/285,311.04
  6. Step 6: Final answer
    x = 218,015.12

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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.