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Finding the Fourth Proportional to 555.56, 832.48 and 230.72

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Solution

The fourth proportional to 555.56, 832.48 and 230.72 is: 345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.56 : 832.48 = 230.72 : x
  2. Step 2: Convert to fraction form
    555.56/832.48 = 230.72/x
  3. Step 3: Cross multiply
    555.56x = 832.48 × 230.72
  4. Step 4: Simplify right side
    555.56x = 192,069.79
  5. Step 5: Solve for x
    x = 192,069.79/555.56
  6. Step 6: Final answer
    x = 345.72

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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.