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Finding the Fourth Proportional to 243,628.29, 365,442.12 and 66,161.34

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Solution

The fourth proportional to 243,628.29, 365,442.12 and 66,161.34 is: 99,241.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,628.29 : 365,442.12 = 66,161.34 : x
  2. Step 2: Convert to fraction form
    243,628.29/365,442.12 = 66,161.34/x
  3. Step 3: Cross multiply
    243,628.29x = 365,442.12 × 66,161.34
  4. Step 4: Simplify right side
    243,628.29x = 24,178,140,351.64
  5. Step 5: Solve for x
    x = 24,178,140,351.64/243,628.29
  6. Step 6: Final answer
    x = 99,241.92

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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.