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Finding the Fourth Proportional to 235,613.88, 325,122.88 and 140,102.12

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Solution

The fourth proportional to 235,613.88, 325,122.88 and 140,102.12 is: 193,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,613.88 : 325,122.88 = 140,102.12 : x
  2. Step 2: Convert to fraction form
    235,613.88/325,122.88 = 140,102.12/x
  3. Step 3: Cross multiply
    235,613.88x = 325,122.88 × 140,102.12
  4. Step 4: Simplify right side
    235,613.88x = 45,550,404,748.51
  5. Step 5: Solve for x
    x = 45,550,404,748.51/235,613.88
  6. Step 6: Final answer
    x = 193,326.49

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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.