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Finding the Fourth Proportional to 418,660.02, 627,989.94 and 123,172.02

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Solution

The fourth proportional to 418,660.02, 627,989.94 and 123,172.02 is: 184,758.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,660.02 : 627,989.94 = 123,172.02 : x
  2. Step 2: Convert to fraction form
    418,660.02/627,989.94 = 123,172.02/x
  3. Step 3: Cross multiply
    418,660.02x = 627,989.94 × 123,172.02
  4. Step 4: Simplify right side
    418,660.02x = 77,350,789,449.48
  5. Step 5: Solve for x
    x = 77,350,789,449.48/418,660.02
  6. Step 6: Final answer
    x = 184,758.00

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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.