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Finding the Fourth Proportional to 375,291.69, 517,892.50 and 214,143.81

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Solution

The fourth proportional to 375,291.69, 517,892.50 and 214,143.81 is: 295,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,291.69 : 517,892.50 = 214,143.81 : x
  2. Step 2: Convert to fraction form
    375,291.69/517,892.50 = 214,143.81/x
  3. Step 3: Cross multiply
    375,291.69x = 517,892.50 × 214,143.81
  4. Step 4: Simplify right side
    375,291.69x = 110,903,473,120.43
  5. Step 5: Solve for x
    x = 110,903,473,120.43/375,291.69
  6. Step 6: Final answer
    x = 295,512.73

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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.