Home / 208,720.05-288,034.40-113,227.43

Finding the Fourth Proportional to 208,720.05, 288,034.40 and 113,227.43

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Solution

The fourth proportional to 208,720.05, 288,034.40 and 113,227.43 is: 156,254.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,720.05 : 288,034.40 = 113,227.43 : x
  2. Step 2: Convert to fraction form
    208,720.05/288,034.40 = 113,227.43/x
  3. Step 3: Cross multiply
    208,720.05x = 288,034.40 × 113,227.43
  4. Step 4: Simplify right side
    208,720.05x = 32,613,394,297.45
  5. Step 5: Solve for x
    x = 32,613,394,297.45/208,720.05
  6. Step 6: Final answer
    x = 156,254.25

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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.