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Finding the Fourth Proportional to 212,791.29, 293,672.65 and 158,982.89

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Solution

The fourth proportional to 212,791.29, 293,672.65 and 158,982.89 is: 219,411.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,791.29 : 293,672.65 = 158,982.89 : x
  2. Step 2: Convert to fraction form
    212,791.29/293,672.65 = 158,982.89/x
  3. Step 3: Cross multiply
    212,791.29x = 293,672.65 × 158,982.89
  4. Step 4: Simplify right side
    212,791.29x = 46,688,926,610.96
  5. Step 5: Solve for x
    x = 46,688,926,610.96/212,791.29
  6. Step 6: Final answer
    x = 219,411.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.