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Finding the Fourth Proportional to 658,269, 987,406.74 and 159,633

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Solution

The fourth proportional to 658,269, 987,406.74 and 159,633 is: 239,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,269 : 987,406.74 = 159,633 : x
  2. Step 2: Convert to fraction form
    658,269/987,406.74 = 159,633/x
  3. Step 3: Cross multiply
    658,269x = 987,406.74 × 159,633
  4. Step 4: Simplify right side
    658,269x = 157,622,700,126.42
  5. Step 5: Solve for x
    x = 157,622,700,126.42/658,269
  6. Step 6: Final answer
    x = 239,450.29

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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.