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Finding the Fourth Proportional to 478,163.99, 659,870.61 and 263,304.92

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Solution

The fourth proportional to 478,163.99, 659,870.61 and 263,304.92 is: 363,363.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,163.99 : 659,870.61 = 263,304.92 : x
  2. Step 2: Convert to fraction form
    478,163.99/659,870.61 = 263,304.92/x
  3. Step 3: Cross multiply
    478,163.99x = 659,870.61 × 263,304.92
  4. Step 4: Simplify right side
    478,163.99x = 173,747,178,176.40
  5. Step 5: Solve for x
    x = 173,747,178,176.40/478,163.99
  6. Step 6: Final answer
    x = 363,363.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.