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Finding the Fourth Proportional to 236,700.56, 326,645.04 and 129,270.56

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Solution

The fourth proportional to 236,700.56, 326,645.04 and 129,270.56 is: 178,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,700.56 : 326,645.04 = 129,270.56 : x
  2. Step 2: Convert to fraction form
    236,700.56/326,645.04 = 129,270.56/x
  3. Step 3: Cross multiply
    236,700.56x = 326,645.04 × 129,270.56
  4. Step 4: Simplify right side
    236,700.56x = 42,225,587,242.02
  5. Step 5: Solve for x
    x = 42,225,587,242.02/236,700.56
  6. Step 6: Final answer
    x = 178,392.43

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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.