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Finding the Fourth Proportional to 508,934, 763,401 and 158,726

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Solution

The fourth proportional to 508,934, 763,401 and 158,726 is: 238,089

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,934 : 763,401 = 158,726 : x
  2. Step 2: Convert to fraction form
    508,934/763,401 = 158,726/x
  3. Step 3: Cross multiply
    508,934x = 763,401 × 158,726
  4. Step 4: Simplify right side
    508,934x = 121,171,587,126
  5. Step 5: Solve for x
    x = 121,171,587,126/508,934
  6. Step 6: Final answer
    x = 238,089

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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.