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Finding the Fourth Proportional to 311,347.89, 429,503.13 and 182,201.49

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Solution

The fourth proportional to 311,347.89, 429,503.13 and 182,201.49 is: 251,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,347.89 : 429,503.13 = 182,201.49 : x
  2. Step 2: Convert to fraction form
    311,347.89/429,503.13 = 182,201.49/x
  3. Step 3: Cross multiply
    311,347.89x = 429,503.13 × 182,201.49
  4. Step 4: Simplify right side
    311,347.89x = 78,256,110,245.66
  5. Step 5: Solve for x
    x = 78,256,110,245.66/311,347.89
  6. Step 6: Final answer
    x = 251,346.20

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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.