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Finding the Fourth Proportional to 658,270, 987,408.24 and 159,634

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Solution

The fourth proportional to 658,270, 987,408.24 and 159,634 is: 239,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,270 : 987,408.24 = 159,634 : x
  2. Step 2: Convert to fraction form
    658,270/987,408.24 = 159,634/x
  3. Step 3: Cross multiply
    658,270x = 987,408.24 × 159,634
  4. Step 4: Simplify right side
    658,270x = 157,623,926,984.16
  5. Step 5: Solve for x
    x = 157,623,926,984.16/658,270
  6. Step 6: Final answer
    x = 239,451.79

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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.