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Finding the Fourth Proportional to 559.50, 839.16 and 148.63

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Solution

The fourth proportional to 559.50, 839.16 and 148.63 is: 222.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.50 : 839.16 = 148.63 : x
  2. Step 2: Convert to fraction form
    559.50/839.16 = 148.63/x
  3. Step 3: Cross multiply
    559.50x = 839.16 × 148.63
  4. Step 4: Simplify right side
    559.50x = 124,724.35
  5. Step 5: Solve for x
    x = 124,724.35/559.50
  6. Step 6: Final answer
    x = 222.92

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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.