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Finding the Fourth Proportional to 194,979.60, 292,512.60 and 152,989.20

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Solution

The fourth proportional to 194,979.60, 292,512.60 and 152,989.20 is: 229,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,979.60 : 292,512.60 = 152,989.20 : x
  2. Step 2: Convert to fraction form
    194,979.60/292,512.60 = 152,989.20/x
  3. Step 3: Cross multiply
    194,979.60x = 292,512.60 × 152,989.20
  4. Step 4: Simplify right side
    194,979.60x = 44,751,268,663.92
  5. Step 5: Solve for x
    x = 44,751,268,663.92/194,979.60
  6. Step 6: Final answer
    x = 229,517.70

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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.