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Finding the Fourth Proportional to 559.46, 838.98 and 376.80

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Solution

The fourth proportional to 559.46, 838.98 and 376.80 is: 565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.46 : 838.98 = 376.80 : x
  2. Step 2: Convert to fraction form
    559.46/838.98 = 376.80/x
  3. Step 3: Cross multiply
    559.46x = 838.98 × 376.80
  4. Step 4: Simplify right side
    559.46x = 316,127.66
  5. Step 5: Solve for x
    x = 316,127.66/559.46
  6. Step 6: Final answer
    x = 565.06

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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.