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Finding the Fourth Proportional to 559.08, 772.02 and 443.16

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Solution

The fourth proportional to 559.08, 772.02 and 443.16 is: 611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.08 : 772.02 = 443.16 : x
  2. Step 2: Convert to fraction form
    559.08/772.02 = 443.16/x
  3. Step 3: Cross multiply
    559.08x = 772.02 × 443.16
  4. Step 4: Simplify right side
    559.08x = 342,128.38
  5. Step 5: Solve for x
    x = 342,128.38/559.08
  6. Step 6: Final answer
    x = 611.95

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Half scale
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Double scale
Find fourth proportional to 560.08, 773.40 and 444.16
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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.