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Finding the Fourth Proportional to 403,679.00, 605,065.91 and 163,737.15

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Solution

The fourth proportional to 403,679.00, 605,065.91 and 163,737.15 is: 245,422.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,679.00 : 605,065.91 = 163,737.15 : x
  2. Step 2: Convert to fraction form
    403,679.00/605,065.91 = 163,737.15/x
  3. Step 3: Cross multiply
    403,679.00x = 605,065.91 × 163,737.15
  4. Step 4: Simplify right side
    403,679.00x = 99,071,766,846.87
  5. Step 5: Solve for x
    x = 99,071,766,846.87/403,679.00
  6. Step 6: Final answer
    x = 245,422.15

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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.