Home / 208,720.31-288,034.74-113,227.68

Finding the Fourth Proportional to 208,720.31, 288,034.74 and 113,227.68

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Solution

The fourth proportional to 208,720.31, 288,034.74 and 113,227.68 is: 156,254.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,720.31 : 288,034.74 = 113,227.68 : x
  2. Step 2: Convert to fraction form
    208,720.31/288,034.74 = 113,227.68/x
  3. Step 3: Cross multiply
    208,720.31x = 288,034.74 × 113,227.68
  4. Step 4: Simplify right side
    208,720.31x = 32,613,505,369.60
  5. Step 5: Solve for x
    x = 32,613,505,369.60/208,720.31
  6. Step 6: Final answer
    x = 156,254.59

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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.