Home / 272,401.45-408,514.20-99,268.51

Finding the Fourth Proportional to 272,401.45, 408,514.20 and 99,268.51

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Solution

The fourth proportional to 272,401.45, 408,514.20 and 99,268.51 is: 148,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,401.45 : 408,514.20 = 99,268.51 : x
  2. Step 2: Convert to fraction form
    272,401.45/408,514.20 = 99,268.51/x
  3. Step 3: Cross multiply
    272,401.45x = 408,514.20 × 99,268.51
  4. Step 4: Simplify right side
    272,401.45x = 40,552,595,947.84
  5. Step 5: Solve for x
    x = 40,552,595,947.84/272,401.45
  6. Step 6: Final answer
    x = 148,870.71

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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.