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Finding the Fourth Proportional to 481,154.78, 663,919.63 and 277,165.86

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Solution

The fourth proportional to 481,154.78, 663,919.63 and 277,165.86 is: 382,446.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,154.78 : 663,919.63 = 277,165.86 : x
  2. Step 2: Convert to fraction form
    481,154.78/663,919.63 = 277,165.86/x
  3. Step 3: Cross multiply
    481,154.78x = 663,919.63 × 277,165.86
  4. Step 4: Simplify right side
    481,154.78x = 184,015,856,315.64
  5. Step 5: Solve for x
    x = 184,015,856,315.64/481,154.78
  6. Step 6: Final answer
    x = 382,446.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.