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Finding the Fourth Proportional to 223,948.80, 336,052.80 and 83,721.60

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Solution

The fourth proportional to 223,948.80, 336,052.80 and 83,721.60 is: 125,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,948.80 : 336,052.80 = 83,721.60 : x
  2. Step 2: Convert to fraction form
    223,948.80/336,052.80 = 83,721.60/x
  3. Step 3: Cross multiply
    223,948.80x = 336,052.80 × 83,721.60
  4. Step 4: Simplify right side
    223,948.80x = 28,134,878,100.48
  5. Step 5: Solve for x
    x = 28,134,878,100.48/223,948.80
  6. Step 6: Final answer
    x = 125,630.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.