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Finding the Fourth Proportional to 638,791.29, 958,186.89 and 165,476.63

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Solution

The fourth proportional to 638,791.29, 958,186.89 and 165,476.63 is: 248,214.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,791.29 : 958,186.89 = 165,476.63 : x
  2. Step 2: Convert to fraction form
    638,791.29/958,186.89 = 165,476.63/x
  3. Step 3: Cross multiply
    638,791.29x = 958,186.89 × 165,476.63
  4. Step 4: Simplify right side
    638,791.29x = 158,557,532,676.45
  5. Step 5: Solve for x
    x = 158,557,532,676.45/638,791.29
  6. Step 6: Final answer
    x = 248,214.93

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Similar ratio
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1.5x scale

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.