Home / 426,885.24-640,176.82-187,115.52

Finding the Fourth Proportional to 426,885.24, 640,176.82 and 187,115.52

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Solution

The fourth proportional to 426,885.24, 640,176.82 and 187,115.52 is: 280,607.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,885.24 : 640,176.82 = 187,115.52 : x
  2. Step 2: Convert to fraction form
    426,885.24/640,176.82 = 187,115.52/x
  3. Step 3: Cross multiply
    426,885.24x = 640,176.82 × 187,115.52
  4. Step 4: Simplify right side
    426,885.24x = 119,787,018,566.25
  5. Step 5: Solve for x
    x = 119,787,018,566.25/426,885.24
  6. Step 6: Final answer
    x = 280,607.08

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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.