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Finding the Fourth Proportional to 370.56, 555.84 and 148.22

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Solution

The fourth proportional to 370.56, 555.84 and 148.22 is: 222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.56 : 555.84 = 148.22 : x
  2. Step 2: Convert to fraction form
    370.56/555.84 = 148.22/x
  3. Step 3: Cross multiply
    370.56x = 555.84 × 148.22
  4. Step 4: Simplify right side
    370.56x = 82,383.83
  5. Step 5: Solve for x
    x = 82,383.83/370.56
  6. Step 6: Final answer
    x = 222.32

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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.