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Finding the Fourth Proportional to 375,291.11, 517,852 and 214,136.55

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Solution

The fourth proportional to 375,291.11, 517,852 and 214,136.55 is: 295,480.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,291.11 : 517,852 = 214,136.55 : x
  2. Step 2: Convert to fraction form
    375,291.11/517,852 = 214,136.55/x
  3. Step 3: Cross multiply
    375,291.11x = 517,852 × 214,136.55
  4. Step 4: Simplify right side
    375,291.11x = 110,891,040,690.60
  5. Step 5: Solve for x
    x = 110,891,040,690.60/375,291.11
  6. Step 6: Final answer
    x = 295,480.06

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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.