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Finding the Fourth Proportional to 235,726.29, 325,301.31 and 128,296.31

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Solution

The fourth proportional to 235,726.29, 325,301.31 and 128,296.31 is: 177,048.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,726.29 : 325,301.31 = 128,296.31 : x
  2. Step 2: Convert to fraction form
    235,726.29/325,301.31 = 128,296.31/x
  3. Step 3: Cross multiply
    235,726.29x = 325,301.31 × 128,296.31
  4. Step 4: Simplify right side
    235,726.29x = 41,734,956,084.66
  5. Step 5: Solve for x
    x = 41,734,956,084.66/235,726.29
  6. Step 6: Final answer
    x = 177,048.37

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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.