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Finding the Fourth Proportional to 627,648.68, 941,464.80 and 154,338.14

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Solution

The fourth proportional to 627,648.68, 941,464.80 and 154,338.14 is: 231,505.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,648.68 : 941,464.80 = 154,338.14 : x
  2. Step 2: Convert to fraction form
    627,648.68/941,464.80 = 154,338.14/x
  3. Step 3: Cross multiply
    627,648.68x = 941,464.80 × 154,338.14
  4. Step 4: Simplify right side
    627,648.68x = 145,303,921,400.15
  5. Step 5: Solve for x
    x = 145,303,921,400.15/627,648.68
  6. Step 6: Final answer
    x = 231,505.18

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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.