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Finding the Fourth Proportional to 508,234.88, 762,422.58 and 171,371.90

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Solution

The fourth proportional to 508,234.88, 762,422.58 and 171,371.90 is: 257,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,234.88 : 762,422.58 = 171,371.90 : x
  2. Step 2: Convert to fraction form
    508,234.88/762,422.58 = 171,371.90/x
  3. Step 3: Cross multiply
    508,234.88x = 762,422.58 × 171,371.90
  4. Step 4: Simplify right side
    508,234.88x = 130,657,806,137.50
  5. Step 5: Solve for x
    x = 130,657,806,137.50/508,234.88
  6. Step 6: Final answer
    x = 257,081.54

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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.