Home / 208,904.22-288,286.20-113,409

Finding the Fourth Proportional to 208,904.22, 288,286.20 and 113,409

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Solution

The fourth proportional to 208,904.22, 288,286.20 and 113,409 is: 156,503.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,904.22 : 288,286.20 = 113,409 : x
  2. Step 2: Convert to fraction form
    208,904.22/288,286.20 = 113,409/x
  3. Step 3: Cross multiply
    208,904.22x = 288,286.20 × 113,409
  4. Step 4: Simplify right side
    208,904.22x = 32,694,249,655.80
  5. Step 5: Solve for x
    x = 32,694,249,655.80/208,904.22
  6. Step 6: Final answer
    x = 156,503.54

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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.