Home / 209,201.49-288,701.33-113,708.43

Finding the Fourth Proportional to 209,201.49, 288,701.33 and 113,708.43

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Solution

The fourth proportional to 209,201.49, 288,701.33 and 113,708.43 is: 156,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,201.49 : 288,701.33 = 113,708.43 : x
  2. Step 2: Convert to fraction form
    209,201.49/288,701.33 = 113,708.43/x
  3. Step 3: Cross multiply
    209,201.49x = 288,701.33 × 113,708.43
  4. Step 4: Simplify right side
    209,201.49x = 32,827,774,973.21
  5. Step 5: Solve for x
    x = 32,827,774,973.21/209,201.49
  6. Step 6: Final answer
    x = 156,919.41

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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.