Home / 205,767.18-308,628.54-65,514.78

Finding the Fourth Proportional to 205,767.18, 308,628.54 and 65,514.78

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Solution

The fourth proportional to 205,767.18, 308,628.54 and 65,514.78 is: 98,265.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,767.18 : 308,628.54 = 65,514.78 : x
  2. Step 2: Convert to fraction form
    205,767.18/308,628.54 = 65,514.78/x
  3. Step 3: Cross multiply
    205,767.18x = 308,628.54 × 65,514.78
  4. Step 4: Simplify right side
    205,767.18x = 20,219,730,899.82
  5. Step 5: Solve for x
    x = 20,219,730,899.82/205,767.18
  6. Step 6: Final answer
    x = 98,265.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.