Home / 280,530.29-421,418.28-173,993.01

Finding the Fourth Proportional to 280,530.29, 421,418.28 and 173,993.01

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Solution

The fourth proportional to 280,530.29, 421,418.28 and 173,993.01 is: 261,375.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,530.29 : 421,418.28 = 173,993.01 : x
  2. Step 2: Convert to fraction form
    280,530.29/421,418.28 = 173,993.01/x
  3. Step 3: Cross multiply
    280,530.29x = 421,418.28 × 173,993.01
  4. Step 4: Simplify right side
    280,530.29x = 73,323,836,655.38
  5. Step 5: Solve for x
    x = 73,323,836,655.38/280,530.29
  6. Step 6: Final answer
    x = 261,375.83

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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.