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Finding the Fourth Proportional to 285,366.48, 393,788.52 and 158,034.48

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Solution

The fourth proportional to 285,366.48, 393,788.52 and 158,034.48 is: 218,078.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,366.48 : 393,788.52 = 158,034.48 : x
  2. Step 2: Convert to fraction form
    285,366.48/393,788.52 = 158,034.48/x
  3. Step 3: Cross multiply
    285,366.48x = 393,788.52 × 158,034.48
  4. Step 4: Simplify right side
    285,366.48x = 62,232,163,988.17
  5. Step 5: Solve for x
    x = 62,232,163,988.17/285,366.48
  6. Step 6: Final answer
    x = 218,078.04

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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.