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Finding the Fourth Proportional to 375,129.91, 517,679.26 and 205,364.03

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Solution

The fourth proportional to 375,129.91, 517,679.26 and 205,364.03 is: 283,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,129.91 : 517,679.26 = 205,364.03 : x
  2. Step 2: Convert to fraction form
    375,129.91/517,679.26 = 205,364.03/x
  3. Step 3: Cross multiply
    375,129.91x = 517,679.26 × 205,364.03
  4. Step 4: Simplify right side
    375,129.91x = 106,312,699,861.81
  5. Step 5: Solve for x
    x = 106,312,699,861.81/375,129.91
  6. Step 6: Final answer
    x = 283,402.36

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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.