Home / 285,387.06-393,829.32-158,059.92

Finding the Fourth Proportional to 285,387.06, 393,829.32 and 158,059.92

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Solution

The fourth proportional to 285,387.06, 393,829.32 and 158,059.92 is: 218,120.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,387.06 : 393,829.32 = 158,059.92 : x
  2. Step 2: Convert to fraction form
    285,387.06/393,829.32 = 158,059.92/x
  3. Step 3: Cross multiply
    285,387.06x = 393,829.32 × 158,059.92
  4. Step 4: Simplify right side
    285,387.06x = 62,248,630,812.85
  5. Step 5: Solve for x
    x = 62,248,630,812.85/285,387.06
  6. Step 6: Final answer
    x = 218,120.02

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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.