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Finding the Fourth Proportional to 295,481.60, 442,930.80 and 145,599.20

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Solution

The fourth proportional to 295,481.60, 442,930.80 and 145,599.20 is: 218,255.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,481.60 : 442,930.80 = 145,599.20 : x
  2. Step 2: Convert to fraction form
    295,481.60/442,930.80 = 145,599.20/x
  3. Step 3: Cross multiply
    295,481.60x = 442,930.80 × 145,599.20
  4. Step 4: Simplify right side
    295,481.60x = 64,490,370,135.36
  5. Step 5: Solve for x
    x = 64,490,370,135.36/295,481.60
  6. Step 6: Final answer
    x = 218,255.11

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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.