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Finding the Fourth Proportional to 298,030.72, 411,340.80 and 170,791.60

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Solution

The fourth proportional to 298,030.72, 411,340.80 and 170,791.60 is: 235,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,030.72 : 411,340.80 = 170,791.60 : x
  2. Step 2: Convert to fraction form
    298,030.72/411,340.80 = 170,791.60/x
  3. Step 3: Cross multiply
    298,030.72x = 411,340.80 × 170,791.60
  4. Step 4: Simplify right side
    298,030.72x = 70,253,553,377.28
  5. Step 5: Solve for x
    x = 70,253,553,377.28/298,030.72
  6. Step 6: Final answer
    x = 235,725.88

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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.