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Finding the Fourth Proportional to 524.81, 786.53 and 216.87

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Solution

The fourth proportional to 524.81, 786.53 and 216.87 is: 325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.81 : 786.53 = 216.87 : x
  2. Step 2: Convert to fraction form
    524.81/786.53 = 216.87/x
  3. Step 3: Cross multiply
    524.81x = 786.53 × 216.87
  4. Step 4: Simplify right side
    524.81x = 170,574.76
  5. Step 5: Solve for x
    x = 170,574.76/524.81
  6. Step 6: Final answer
    x = 325.03

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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.