Home / 292,342.20-438,513.30-82,015.80

Finding the Fourth Proportional to 292,342.20, 438,513.30 and 82,015.80

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Solution

The fourth proportional to 292,342.20, 438,513.30 and 82,015.80 is: 123,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,342.20 : 438,513.30 = 82,015.80 : x
  2. Step 2: Convert to fraction form
    292,342.20/438,513.30 = 82,015.80/x
  3. Step 3: Cross multiply
    292,342.20x = 438,513.30 × 82,015.80
  4. Step 4: Simplify right side
    292,342.20x = 35,965,019,110.14
  5. Step 5: Solve for x
    x = 35,965,019,110.14/292,342.20
  6. Step 6: Final answer
    x = 123,023.70

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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.