Home / 209,047.20-288,485.35-113,553.90

Finding the Fourth Proportional to 209,047.20, 288,485.35 and 113,553.90

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Solution

The fourth proportional to 209,047.20, 288,485.35 and 113,553.90 is: 156,704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,047.20 : 288,485.35 = 113,553.90 : x
  2. Step 2: Convert to fraction form
    209,047.20/288,485.35 = 113,553.90/x
  3. Step 3: Cross multiply
    209,047.20x = 288,485.35 × 113,553.90
  4. Step 4: Simplify right side
    209,047.20x = 32,758,636,301.48
  5. Step 5: Solve for x
    x = 32,758,636,301.48/209,047.20
  6. Step 6: Final answer
    x = 156,704.50

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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.