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Finding the Fourth Proportional to 254,235.30, 381,644.55 and 154,508.10

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Solution

The fourth proportional to 254,235.30, 381,644.55 and 154,508.10 is: 231,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,235.30 : 381,644.55 = 154,508.10 : x
  2. Step 2: Convert to fraction form
    254,235.30/381,644.55 = 154,508.10/x
  3. Step 3: Cross multiply
    254,235.30x = 381,644.55 × 154,508.10
  4. Step 4: Simplify right side
    254,235.30x = 58,967,174,295.86
  5. Step 5: Solve for x
    x = 58,967,174,295.86/254,235.30
  6. Step 6: Final answer
    x = 231,939.37

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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.