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Finding the Fourth Proportional to 235,610, 325,141.80 and 129,626

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Solution

The fourth proportional to 235,610, 325,141.80 and 129,626 is: 178,883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,610 : 325,141.80 = 129,626 : x
  2. Step 2: Convert to fraction form
    235,610/325,141.80 = 129,626/x
  3. Step 3: Cross multiply
    235,610x = 325,141.80 × 129,626
  4. Step 4: Simplify right side
    235,610x = 42,146,830,966.80
  5. Step 5: Solve for x
    x = 42,146,830,966.80/235,610
  6. Step 6: Final answer
    x = 178,883.88

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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.