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Finding the Fourth Proportional to 243,665.32, 365,120.34 and 168,930.76

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Solution

The fourth proportional to 243,665.32, 365,120.34 and 168,930.76 is: 253,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,665.32 : 365,120.34 = 168,930.76 : x
  2. Step 2: Convert to fraction form
    243,665.32/365,120.34 = 168,930.76/x
  3. Step 3: Cross multiply
    243,665.32x = 365,120.34 × 168,930.76
  4. Step 4: Simplify right side
    243,665.32x = 61,680,056,527.66
  5. Step 5: Solve for x
    x = 61,680,056,527.66/243,665.32
  6. Step 6: Final answer
    x = 253,134.33

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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.