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Finding the Fourth Proportional to 243,685.92, 365,587.20 and 123,443.04

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Solution

The fourth proportional to 243,685.92, 365,587.20 and 123,443.04 is: 185,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,685.92 : 365,587.20 = 123,443.04 : x
  2. Step 2: Convert to fraction form
    243,685.92/365,587.20 = 123,443.04/x
  3. Step 3: Cross multiply
    243,685.92x = 365,587.20 × 123,443.04
  4. Step 4: Simplify right side
    243,685.92x = 45,129,195,353.09
  5. Step 5: Solve for x
    x = 45,129,195,353.09/243,685.92
  6. Step 6: Final answer
    x = 185,194.10

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1.5x scale

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.