Home / 209,310.84-288,851.40-113,819.76

Finding the Fourth Proportional to 209,310.84, 288,851.40 and 113,819.76

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Solution

The fourth proportional to 209,310.84, 288,851.40 and 113,819.76 is: 157,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,310.84 : 288,851.40 = 113,819.76 : x
  2. Step 2: Convert to fraction form
    209,310.84/288,851.40 = 113,819.76/x
  3. Step 3: Cross multiply
    209,310.84x = 288,851.40 × 113,819.76
  4. Step 4: Simplify right side
    209,310.84x = 32,876,997,023.66
  5. Step 5: Solve for x
    x = 32,876,997,023.66/209,310.84
  6. Step 6: Final answer
    x = 157,072.60

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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.