Home / 292,621.89-438,932.88-82,259.88

Finding the Fourth Proportional to 292,621.89, 438,932.88 and 82,259.88

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Solution

The fourth proportional to 292,621.89, 438,932.88 and 82,259.88 is: 123,389.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,621.89 : 438,932.88 = 82,259.88 : x
  2. Step 2: Convert to fraction form
    292,621.89/438,932.88 = 82,259.88/x
  3. Step 3: Cross multiply
    292,621.89x = 438,932.88 × 82,259.88
  4. Step 4: Simplify right side
    292,621.89x = 36,106,566,036.85
  5. Step 5: Solve for x
    x = 36,106,566,036.85/292,621.89
  6. Step 6: Final answer
    x = 123,389.83

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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.