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Finding the Fourth Proportional to 299,667.76, 413,554.10 and 172,343.47

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Solution

The fourth proportional to 299,667.76, 413,554.10 and 172,343.47 is: 237,841.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,667.76 : 413,554.10 = 172,343.47 : x
  2. Step 2: Convert to fraction form
    299,667.76/413,554.10 = 172,343.47/x
  3. Step 3: Cross multiply
    299,667.76x = 413,554.10 × 172,343.47
  4. Step 4: Simplify right side
    299,667.76x = 71,273,348,626.73
  5. Step 5: Solve for x
    x = 71,273,348,626.73/299,667.76
  6. Step 6: Final answer
    x = 237,841.23

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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.