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Finding the Fourth Proportional to 315,625.50, 435,576.15 and 181,489.50

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Solution

The fourth proportional to 315,625.50, 435,576.15 and 181,489.50 is: 250,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,625.50 : 435,576.15 = 181,489.50 : x
  2. Step 2: Convert to fraction form
    315,625.50/435,576.15 = 181,489.50/x
  3. Step 3: Cross multiply
    315,625.50x = 435,576.15 × 181,489.50
  4. Step 4: Simplify right side
    315,625.50x = 79,052,497,675.43
  5. Step 5: Solve for x
    x = 79,052,497,675.43/315,625.50
  6. Step 6: Final answer
    x = 250,462.96

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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.