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Finding the Fourth Proportional to 228,241.11, 342,294.75 and 85,983.75

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Solution

The fourth proportional to 228,241.11, 342,294.75 and 85,983.75 is: 128,950.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,241.11 : 342,294.75 = 85,983.75 : x
  2. Step 2: Convert to fraction form
    228,241.11/342,294.75 = 85,983.75/x
  3. Step 3: Cross multiply
    228,241.11x = 342,294.75 × 85,983.75
  4. Step 4: Simplify right side
    228,241.11x = 29,431,786,210.31
  5. Step 5: Solve for x
    x = 29,431,786,210.31/228,241.11
  6. Step 6: Final answer
    x = 128,950.41

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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.