Home / 212,781.38-293,640.28-117,291.49

Finding the Fourth Proportional to 212,781.38, 293,640.28 and 117,291.49

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Solution

The fourth proportional to 212,781.38, 293,640.28 and 117,291.49 is: 161,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,781.38 : 293,640.28 = 117,291.49 : x
  2. Step 2: Convert to fraction form
    212,781.38/293,640.28 = 117,291.49/x
  3. Step 3: Cross multiply
    212,781.38x = 293,640.28 × 117,291.49
  4. Step 4: Simplify right side
    212,781.38x = 34,441,504,937.89
  5. Step 5: Solve for x
    x = 34,441,504,937.89/212,781.38
  6. Step 6: Final answer
    x = 161,863.34

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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.