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Finding the Fourth Proportional to 508,959.28, 763,125.44 and 171,968.09

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Solution

The fourth proportional to 508,959.28, 763,125.44 and 171,968.09 is: 257,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,959.28 : 763,125.44 = 171,968.09 : x
  2. Step 2: Convert to fraction form
    508,959.28/763,125.44 = 171,968.09/x
  3. Step 3: Cross multiply
    508,959.28x = 763,125.44 × 171,968.09
  4. Step 4: Simplify right side
    508,959.28x = 131,233,224,347.21
  5. Step 5: Solve for x
    x = 131,233,224,347.21/508,959.28
  6. Step 6: Final answer
    x = 257,846.22

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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.