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Finding the Fourth Proportional to 438,954.86, 658,485.03 and 154,586.63

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Solution

The fourth proportional to 438,954.86, 658,485.03 and 154,586.63 is: 231,898.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,954.86 : 658,485.03 = 154,586.63 : x
  2. Step 2: Convert to fraction form
    438,954.86/658,485.03 = 154,586.63/x
  3. Step 3: Cross multiply
    438,954.86x = 658,485.03 × 154,586.63
  4. Step 4: Simplify right side
    438,954.86x = 101,792,978,400.72
  5. Step 5: Solve for x
    x = 101,792,978,400.72/438,954.86
  6. Step 6: Final answer
    x = 231,898.51

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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.