Home / 209,113.72-288,576.46-113,620.80

Finding the Fourth Proportional to 209,113.72, 288,576.46 and 113,620.80

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Solution

The fourth proportional to 209,113.72, 288,576.46 and 113,620.80 is: 156,796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,113.72 : 288,576.46 = 113,620.80 : x
  2. Step 2: Convert to fraction form
    209,113.72/288,576.46 = 113,620.80/x
  3. Step 3: Cross multiply
    209,113.72x = 288,576.46 × 113,620.80
  4. Step 4: Simplify right side
    209,113.72x = 32,788,288,246.37
  5. Step 5: Solve for x
    x = 32,788,288,246.37/209,113.72
  6. Step 6: Final answer
    x = 156,796.45

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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.