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Finding the Fourth Proportional to 236,725, 326,680.48 and 129,295.28

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Solution

The fourth proportional to 236,725, 326,680.48 and 129,295.28 is: 178,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,725 : 326,680.48 = 129,295.28 : x
  2. Step 2: Convert to fraction form
    236,725/326,680.48 = 129,295.28/x
  3. Step 3: Cross multiply
    236,725x = 326,680.48 × 129,295.28
  4. Step 4: Simplify right side
    236,725x = 42,238,244,132.13
  5. Step 5: Solve for x
    x = 42,238,244,132.13/236,725
  6. Step 6: Final answer
    x = 178,427.48

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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.