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Finding the Fourth Proportional to 392,460.14, 541,600.67 and 220,415.34

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Solution

The fourth proportional to 392,460.14, 541,600.67 and 220,415.34 is: 304,176.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,460.14 : 541,600.67 = 220,415.34 : x
  2. Step 2: Convert to fraction form
    392,460.14/541,600.67 = 220,415.34/x
  3. Step 3: Cross multiply
    392,460.14x = 541,600.67 × 220,415.34
  4. Step 4: Simplify right side
    392,460.14x = 119,377,094,720.20
  5. Step 5: Solve for x
    x = 119,377,094,720.20/392,460.14
  6. Step 6: Final answer
    x = 304,176.36

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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.