Home / 415,341.20-622,781.40-165,741.20

Finding the Fourth Proportional to 415,341.20, 622,781.40 and 165,741.20

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Solution

The fourth proportional to 415,341.20, 622,781.40 and 165,741.20 is: 248,519.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,341.20 : 622,781.40 = 165,741.20 : x
  2. Step 2: Convert to fraction form
    415,341.20/622,781.40 = 165,741.20/x
  3. Step 3: Cross multiply
    415,341.20x = 622,781.40 × 165,741.20
  4. Step 4: Simplify right side
    415,341.20x = 103,220,536,573.68
  5. Step 5: Solve for x
    x = 103,220,536,573.68/415,341.20
  6. Step 6: Final answer
    x = 248,519.86

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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.