Home / 292,134.06-438,157.16-92,428.46

Finding the Fourth Proportional to 292,134.06, 438,157.16 and 92,428.46

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Solution

The fourth proportional to 292,134.06, 438,157.16 and 92,428.46 is: 138,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,134.06 : 438,157.16 = 92,428.46 : x
  2. Step 2: Convert to fraction form
    292,134.06/438,157.16 = 92,428.46/x
  3. Step 3: Cross multiply
    292,134.06x = 438,157.16 × 92,428.46
  4. Step 4: Simplify right side
    292,134.06x = 40,498,188,883.85
  5. Step 5: Solve for x
    x = 40,498,188,883.85/292,134.06
  6. Step 6: Final answer
    x = 138,628.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.