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Finding the Fourth Proportional to 259,514.96, 358,130.15 and 144,786.78

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Solution

The fourth proportional to 259,514.96, 358,130.15 and 144,786.78 is: 199,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,514.96 : 358,130.15 = 144,786.78 : x
  2. Step 2: Convert to fraction form
    259,514.96/358,130.15 = 144,786.78/x
  3. Step 3: Cross multiply
    259,514.96x = 358,130.15 × 144,786.78
  4. Step 4: Simplify right side
    259,514.96x = 51,852,511,601.38
  5. Step 5: Solve for x
    x = 51,852,511,601.38/259,514.96
  6. Step 6: Final answer
    x = 199,805.48

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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.