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Finding the Fourth Proportional to 243,630.70, 365,446.05 and 66,165.10

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Solution

The fourth proportional to 243,630.70, 365,446.05 and 66,165.10 is: 99,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,630.70 : 365,446.05 = 66,165.10 : x
  2. Step 2: Convert to fraction form
    243,630.70/365,446.05 = 66,165.10/x
  3. Step 3: Cross multiply
    243,630.70x = 365,446.05 × 66,165.10
  4. Step 4: Simplify right side
    243,630.70x = 24,179,774,442.86
  5. Step 5: Solve for x
    x = 24,179,774,442.86/243,630.70
  6. Step 6: Final answer
    x = 99,247.65

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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.