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Finding the Fourth Proportional to 627,649.16, 941,465.54 and 154,338.62

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Solution

The fourth proportional to 627,649.16, 941,465.54 and 154,338.62 is: 231,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,649.16 : 941,465.54 = 154,338.62 : x
  2. Step 2: Convert to fraction form
    627,649.16/941,465.54 = 154,338.62/x
  3. Step 3: Cross multiply
    627,649.16x = 941,465.54 × 154,338.62
  4. Step 4: Simplify right side
    627,649.16x = 145,304,492,221.16
  5. Step 5: Solve for x
    x = 145,304,492,221.16/627,649.16
  6. Step 6: Final answer
    x = 231,505.91

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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.