Home / 223,488.29-308,415.09-121,514.75

Finding the Fourth Proportional to 223,488.29, 308,415.09 and 121,514.75

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Solution

The fourth proportional to 223,488.29, 308,415.09 and 121,514.75 is: 167,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,488.29 : 308,415.09 = 121,514.75 : x
  2. Step 2: Convert to fraction form
    223,488.29/308,415.09 = 121,514.75/x
  3. Step 3: Cross multiply
    223,488.29x = 308,415.09 × 121,514.75
  4. Step 4: Simplify right side
    223,488.29x = 37,476,981,015.50
  5. Step 5: Solve for x
    x = 37,476,981,015.50/223,488.29
  6. Step 6: Final answer
    x = 167,691.03

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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.