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Finding the Fourth Proportional to 627,709.10, 941,520.45 and 201,238.70

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Solution

The fourth proportional to 627,709.10, 941,520.45 and 201,238.70 is: 301,844.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,709.10 : 941,520.45 = 201,238.70 : x
  2. Step 2: Convert to fraction form
    627,709.10/941,520.45 = 201,238.70/x
  3. Step 3: Cross multiply
    627,709.10x = 941,520.45 × 201,238.70
  4. Step 4: Simplify right side
    627,709.10x = 189,470,351,381.42
  5. Step 5: Solve for x
    x = 189,470,351,381.42/627,709.10
  6. Step 6: Final answer
    x = 301,844.20

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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.