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Finding the Fourth Proportional to 315,458.96, 435,371.56 and 179,525.97

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Solution

The fourth proportional to 315,458.96, 435,371.56 and 179,525.97 is: 247,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,458.96 : 435,371.56 = 179,525.97 : x
  2. Step 2: Convert to fraction form
    315,458.96/435,371.56 = 179,525.97/x
  3. Step 3: Cross multiply
    315,458.96x = 435,371.56 × 179,525.97
  4. Step 4: Simplify right side
    315,458.96x = 78,160,501,170.60
  5. Step 5: Solve for x
    x = 78,160,501,170.60/315,458.96
  6. Step 6: Final answer
    x = 247,767.58

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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.