Home / 285,380.04-393,827.76-158,057.76

Finding the Fourth Proportional to 285,380.04, 393,827.76 and 158,057.76

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Solution

The fourth proportional to 285,380.04, 393,827.76 and 158,057.76 is: 218,121.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,380.04 : 393,827.76 = 158,057.76 : x
  2. Step 2: Convert to fraction form
    285,380.04/393,827.76 = 158,057.76/x
  3. Step 3: Cross multiply
    285,380.04x = 393,827.76 × 158,057.76
  4. Step 4: Simplify right side
    285,380.04x = 62,247,533,571.42
  5. Step 5: Solve for x
    x = 62,247,533,571.42/285,380.04
  6. Step 6: Final answer
    x = 218,121.54

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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.