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Finding the Fourth Proportional to 290,272.59, 400,635.11 and 167,770.17

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Solution

The fourth proportional to 290,272.59, 400,635.11 and 167,770.17 is: 231,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,272.59 : 400,635.11 = 167,770.17 : x
  2. Step 2: Convert to fraction form
    290,272.59/400,635.11 = 167,770.17/x
  3. Step 3: Cross multiply
    290,272.59x = 400,635.11 × 167,770.17
  4. Step 4: Simplify right side
    290,272.59x = 67,214,620,512.67
  5. Step 5: Solve for x
    x = 67,214,620,512.67/290,272.59
  6. Step 6: Final answer
    x = 231,556.90

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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.