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Finding the Fourth Proportional to 236,641, 326,562.92 and 129,210.96

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Solution

The fourth proportional to 236,641, 326,562.92 and 129,210.96 is: 178,310.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,641 : 326,562.92 = 129,210.96 : x
  2. Step 2: Convert to fraction form
    236,641/326,562.92 = 129,210.96/x
  3. Step 3: Cross multiply
    236,641x = 326,562.92 × 129,210.96
  4. Step 4: Simplify right side
    236,641x = 42,195,508,393.60
  5. Step 5: Solve for x
    x = 42,195,508,393.60/236,641
  6. Step 6: Final answer
    x = 178,310.22

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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.