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Finding the Fourth Proportional to 375,296.89, 563,241.20 and 138,707.23

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Solution

The fourth proportional to 375,296.89, 563,241.20 and 138,707.23 is: 208,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,296.89 : 563,241.20 = 138,707.23 : x
  2. Step 2: Convert to fraction form
    375,296.89/563,241.20 = 138,707.23/x
  3. Step 3: Cross multiply
    375,296.89x = 563,241.20 × 138,707.23
  4. Step 4: Simplify right side
    375,296.89x = 78,125,626,673.88
  5. Step 5: Solve for x
    x = 78,125,626,673.88/375,296.89
  6. Step 6: Final answer
    x = 208,170.19

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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.