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Finding the Fourth Proportional to 239,636.86, 330,696.60 and 132,207.78

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Solution

The fourth proportional to 239,636.86, 330,696.60 and 132,207.78 is: 182,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,636.86 : 330,696.60 = 132,207.78 : x
  2. Step 2: Convert to fraction form
    239,636.86/330,696.60 = 132,207.78/x
  3. Step 3: Cross multiply
    239,636.86x = 330,696.60 × 132,207.78
  4. Step 4: Simplify right side
    239,636.86x = 43,720,663,339.55
  5. Step 5: Solve for x
    x = 43,720,663,339.55/239,636.86
  6. Step 6: Final answer
    x = 182,445.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.