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Finding the Fourth Proportional to 560.56, 840.84 and 170.56

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Solution

The fourth proportional to 560.56, 840.84 and 170.56 is: 255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.56 : 840.84 = 170.56 : x
  2. Step 2: Convert to fraction form
    560.56/840.84 = 170.56/x
  3. Step 3: Cross multiply
    560.56x = 840.84 × 170.56
  4. Step 4: Simplify right side
    560.56x = 143,413.67
  5. Step 5: Solve for x
    x = 143,413.67/560.56
  6. Step 6: Final answer
    x = 255.84

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Similar ratio
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1.5x scale

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.