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Finding the Fourth Proportional to 315,326.97, 435,140.24 and 179,350.65

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Solution

The fourth proportional to 315,326.97, 435,140.24 and 179,350.65 is: 247,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,326.97 : 435,140.24 = 179,350.65 : x
  2. Step 2: Convert to fraction form
    315,326.97/435,140.24 = 179,350.65/x
  3. Step 3: Cross multiply
    315,326.97x = 435,140.24 × 179,350.65
  4. Step 4: Simplify right side
    315,326.97x = 78,042,683,988.40
  5. Step 5: Solve for x
    x = 78,042,683,988.40/315,326.97
  6. Step 6: Final answer
    x = 247,497.65

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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.