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Finding the Fourth Proportional to 229,357.26, 316,510.83 and 128,754.54

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Solution

The fourth proportional to 229,357.26, 316,510.83 and 128,754.54 is: 177,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,357.26 : 316,510.83 = 128,754.54 : x
  2. Step 2: Convert to fraction form
    229,357.26/316,510.83 = 128,754.54/x
  3. Step 3: Cross multiply
    229,357.26x = 316,510.83 × 128,754.54
  4. Step 4: Simplify right side
    229,357.26x = 40,752,206,321.67
  5. Step 5: Solve for x
    x = 40,752,206,321.67/229,357.26
  6. Step 6: Final answer
    x = 177,680.04

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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.