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Finding the Fourth Proportional to 563.65, 845.53 and 152.79

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Solution

The fourth proportional to 563.65, 845.53 and 152.79 is: 229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.65 : 845.53 = 152.79 : x
  2. Step 2: Convert to fraction form
    563.65/845.53 = 152.79/x
  3. Step 3: Cross multiply
    563.65x = 845.53 × 152.79
  4. Step 4: Simplify right side
    563.65x = 129,188.15
  5. Step 5: Solve for x
    x = 129,188.15/563.65
  6. Step 6: Final answer
    x = 229.20

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Double scale
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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.