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Finding the Fourth Proportional to 559.30, 838.10 and 376.02

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Solution

The fourth proportional to 559.30, 838.10 and 376.02 is: 563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.30 : 838.10 = 376.02 : x
  2. Step 2: Convert to fraction form
    559.30/838.10 = 376.02/x
  3. Step 3: Cross multiply
    559.30x = 838.10 × 376.02
  4. Step 4: Simplify right side
    559.30x = 315,139.80
  5. Step 5: Solve for x
    x = 315,139.80/559.30
  6. Step 6: Final answer
    x = 563.45

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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.