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Finding the Fourth Proportional to 172,150.50, 258,240.63 and 47,491.50

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Solution

The fourth proportional to 172,150.50, 258,240.63 and 47,491.50 is: 71,241.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,150.50 : 258,240.63 = 47,491.50 : x
  2. Step 2: Convert to fraction form
    172,150.50/258,240.63 = 47,491.50/x
  3. Step 3: Cross multiply
    172,150.50x = 258,240.63 × 47,491.50
  4. Step 4: Simplify right side
    172,150.50x = 12,264,235,057.74
  5. Step 5: Solve for x
    x = 12,264,235,057.74/172,150.50
  6. Step 6: Final answer
    x = 71,241.36

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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.