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Finding the Fourth Proportional to 462,467.64, 638,278.38 and 281,236.44

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Solution

The fourth proportional to 462,467.64, 638,278.38 and 281,236.44 is: 388,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,467.64 : 638,278.38 = 281,236.44 : x
  2. Step 2: Convert to fraction form
    462,467.64/638,278.38 = 281,236.44/x
  3. Step 3: Cross multiply
    462,467.64x = 638,278.38 × 281,236.44
  4. Step 4: Simplify right side
    462,467.64x = 179,507,139,320.17
  5. Step 5: Solve for x
    x = 179,507,139,320.17/462,467.64
  6. Step 6: Final answer
    x = 388,150.70

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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.