Home / 259,180.76-388,504.55-99,219.03

Finding the Fourth Proportional to 259,180.76, 388,504.55 and 99,219.03

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Solution

The fourth proportional to 259,180.76, 388,504.55 and 99,219.03 is: 148,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,180.76 : 388,504.55 = 99,219.03 : x
  2. Step 2: Convert to fraction form
    259,180.76/388,504.55 = 99,219.03/x
  3. Step 3: Cross multiply
    259,180.76x = 388,504.55 × 99,219.03
  4. Step 4: Simplify right side
    259,180.76x = 38,547,043,392.74
  5. Step 5: Solve for x
    x = 38,547,043,392.74/259,180.76
  6. Step 6: Final answer
    x = 148,726.48

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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.