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Finding the Fourth Proportional to 375,255.90, 517,931.33 and 344,993.30

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Solution

The fourth proportional to 375,255.90, 517,931.33 and 344,993.30 is: 476,162.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,255.90 : 517,931.33 = 344,993.30 : x
  2. Step 2: Convert to fraction form
    375,255.90/517,931.33 = 344,993.30/x
  3. Step 3: Cross multiply
    375,255.90x = 517,931.33 × 344,993.30
  4. Step 4: Simplify right side
    375,255.90x = 178,682,834,395.47
  5. Step 5: Solve for x
    x = 178,682,834,395.47/375,255.90
  6. Step 6: Final answer
    x = 476,162.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.