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Finding the Fourth Proportional to 299,616.79, 413,470.49 and 172,292.39

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Solution

The fourth proportional to 299,616.79, 413,470.49 and 172,292.39 is: 237,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,616.79 : 413,470.49 = 172,292.39 : x
  2. Step 2: Convert to fraction form
    299,616.79/413,470.49 = 172,292.39/x
  3. Step 3: Cross multiply
    299,616.79x = 413,470.49 × 172,292.39
  4. Step 4: Simplify right side
    299,616.79x = 71,237,818,916.57
  5. Step 5: Solve for x
    x = 71,237,818,916.57/299,616.79
  6. Step 6: Final answer
    x = 237,763.11

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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.