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Finding the Fourth Proportional to 279,603.08, 419,013.67 and 151,242.27

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Solution

The fourth proportional to 279,603.08, 419,013.67 and 151,242.27 is: 226,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,603.08 : 419,013.67 = 151,242.27 : x
  2. Step 2: Convert to fraction form
    279,603.08/419,013.67 = 151,242.27/x
  3. Step 3: Cross multiply
    279,603.08x = 419,013.67 × 151,242.27
  4. Step 4: Simplify right side
    279,603.08x = 63,372,578,549.85
  5. Step 5: Solve for x
    x = 63,372,578,549.85/279,603.08
  6. Step 6: Final answer
    x = 226,651.93

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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.