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Finding the Fourth Proportional to 563.65, 845.40 and 152.81

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Solution

The fourth proportional to 563.65, 845.40 and 152.81 is: 229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.65 : 845.40 = 152.81 : x
  2. Step 2: Convert to fraction form
    563.65/845.40 = 152.81/x
  3. Step 3: Cross multiply
    563.65x = 845.40 × 152.81
  4. Step 4: Simplify right side
    563.65x = 129,185.57
  5. Step 5: Solve for x
    x = 129,185.57/563.65
  6. Step 6: Final answer
    x = 229.19

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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.