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Finding the Fourth Proportional to 236,102.16, 325,821.23 and 128,672.29

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Solution

The fourth proportional to 236,102.16, 325,821.23 and 128,672.29 is: 177,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,102.16 : 325,821.23 = 128,672.29 : x
  2. Step 2: Convert to fraction form
    236,102.16/325,821.23 = 128,672.29/x
  3. Step 3: Cross multiply
    236,102.16x = 325,821.23 × 128,672.29
  4. Step 4: Simplify right side
    236,102.16x = 41,924,163,794.72
  5. Step 5: Solve for x
    x = 41,924,163,794.72/236,102.16
  6. Step 6: Final answer
    x = 177,567.90

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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.