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Finding the Fourth Proportional to 243,379.04, 365,103.12 and 74,913.39

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Solution

The fourth proportional to 243,379.04, 365,103.12 and 74,913.39 is: 112,380.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,379.04 : 365,103.12 = 74,913.39 : x
  2. Step 2: Convert to fraction form
    243,379.04/365,103.12 = 74,913.39/x
  3. Step 3: Cross multiply
    243,379.04x = 365,103.12 × 74,913.39
  4. Step 4: Simplify right side
    243,379.04x = 27,351,112,418.78
  5. Step 5: Solve for x
    x = 27,351,112,418.78/243,379.04
  6. Step 6: Final answer
    x = 112,380.73

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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.