Home / 251,845.39-347,545.65-138,668.14

Finding the Fourth Proportional to 251,845.39, 347,545.65 and 138,668.14

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Solution

The fourth proportional to 251,845.39, 347,545.65 and 138,668.14 is: 191,361.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,845.39 : 347,545.65 = 138,668.14 : x
  2. Step 2: Convert to fraction form
    251,845.39/347,545.65 = 138,668.14/x
  3. Step 3: Cross multiply
    251,845.39x = 347,545.65 × 138,668.14
  4. Step 4: Simplify right side
    251,845.39x = 48,193,508,850.59
  5. Step 5: Solve for x
    x = 48,193,508,850.59/251,845.39
  6. Step 6: Final answer
    x = 191,361.49

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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.