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Finding the Fourth Proportional to 243,543.38, 365,327.37 and 75,178.89

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Solution

The fourth proportional to 243,543.38, 365,327.37 and 75,178.89 is: 112,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,543.38 : 365,327.37 = 75,178.89 : x
  2. Step 2: Convert to fraction form
    243,543.38/365,327.37 = 75,178.89/x
  3. Step 3: Cross multiply
    243,543.38x = 365,327.37 × 75,178.89
  4. Step 4: Simplify right side
    243,543.38x = 27,464,906,163.22
  5. Step 5: Solve for x
    x = 27,464,906,163.22/243,543.38
  6. Step 6: Final answer
    x = 112,772.13

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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.