Home / 403,514.20-605,045.30-187,140.92

Finding the Fourth Proportional to 403,514.20, 605,045.30 and 187,140.92

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Solution

The fourth proportional to 403,514.20, 605,045.30 and 187,140.92 is: 280,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,514.20 : 605,045.30 = 187,140.92 : x
  2. Step 2: Convert to fraction form
    403,514.20/605,045.30 = 187,140.92/x
  3. Step 3: Cross multiply
    403,514.20x = 605,045.30 × 187,140.92
  4. Step 4: Simplify right side
    403,514.20x = 113,228,736,064.14
  5. Step 5: Solve for x
    x = 113,228,736,064.14/403,514.20
  6. Step 6: Final answer
    x = 280,606.57

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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.