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Finding the Fourth Proportional to 253,197.90, 379,850.31 and 95,427.72

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Solution

The fourth proportional to 253,197.90, 379,850.31 and 95,427.72 is: 143,161.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,197.90 : 379,850.31 = 95,427.72 : x
  2. Step 2: Convert to fraction form
    253,197.90/379,850.31 = 95,427.72/x
  3. Step 3: Cross multiply
    253,197.90x = 379,850.31 × 95,427.72
  4. Step 4: Simplify right side
    253,197.90x = 36,248,249,024.59
  5. Step 5: Solve for x
    x = 36,248,249,024.59/253,197.90
  6. Step 6: Final answer
    x = 143,161.73

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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.