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Finding the Fourth Proportional to 564.55, 846.76 and 148.12

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Solution

The fourth proportional to 564.55, 846.76 and 148.12 is: 222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.55 : 846.76 = 148.12 : x
  2. Step 2: Convert to fraction form
    564.55/846.76 = 148.12/x
  3. Step 3: Cross multiply
    564.55x = 846.76 × 148.12
  4. Step 4: Simplify right side
    564.55x = 125,419.23
  5. Step 5: Solve for x
    x = 125,419.23/564.55
  6. Step 6: Final answer
    x = 222.16

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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.