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Finding the Fourth Proportional to 209,249.01, 288,752.60 and 113,755.28

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Solution

The fourth proportional to 209,249.01, 288,752.60 and 113,755.28 is: 156,976.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,249.01 : 288,752.60 = 113,755.28 : x
  2. Step 2: Convert to fraction form
    209,249.01/288,752.60 = 113,755.28/x
  3. Step 3: Cross multiply
    209,249.01x = 288,752.60 × 113,755.28
  4. Step 4: Simplify right side
    209,249.01x = 32,847,130,851.19
  5. Step 5: Solve for x
    x = 32,847,130,851.19/209,249.01
  6. Step 6: Final answer
    x = 156,976.28

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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.