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Finding the Fourth Proportional to 201,613.05, 278,110.13 and 126,030.33

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Solution

The fourth proportional to 201,613.05, 278,110.13 and 126,030.33 is: 173,849.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,613.05 : 278,110.13 = 126,030.33 : x
  2. Step 2: Convert to fraction form
    201,613.05/278,110.13 = 126,030.33/x
  3. Step 3: Cross multiply
    201,613.05x = 278,110.13 × 126,030.33
  4. Step 4: Simplify right side
    201,613.05x = 35,050,310,830.09
  5. Step 5: Solve for x
    x = 35,050,310,830.09/201,613.05
  6. Step 6: Final answer
    x = 173,849.42

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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.