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Finding the Fourth Proportional to 360,390.97, 497,257.05 and 215,168.54

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Solution

The fourth proportional to 360,390.97, 497,257.05 and 215,168.54 is: 296,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,390.97 : 497,257.05 = 215,168.54 : x
  2. Step 2: Convert to fraction form
    360,390.97/497,257.05 = 215,168.54/x
  3. Step 3: Cross multiply
    360,390.97x = 497,257.05 × 215,168.54
  4. Step 4: Simplify right side
    360,390.97x = 106,994,072,377.36
  5. Step 5: Solve for x
    x = 106,994,072,377.36/360,390.97
  6. Step 6: Final answer
    x = 296,883.34

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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.