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Finding the Fourth Proportional to 508,213.80, 762,127.11 and 171,163.89

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Solution

The fourth proportional to 508,213.80, 762,127.11 and 171,163.89 is: 256,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,213.80 : 762,127.11 = 171,163.89 : x
  2. Step 2: Convert to fraction form
    508,213.80/762,127.11 = 171,163.89/x
  3. Step 3: Cross multiply
    508,213.80x = 762,127.11 × 171,163.89
  4. Step 4: Simplify right side
    508,213.80x = 130,448,640,822.06
  5. Step 5: Solve for x
    x = 130,448,640,822.06/508,213.80
  6. Step 6: Final answer
    x = 256,680.63

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1.5x scale

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.