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Finding the Fourth Proportional to 264.96, 365.54 and 154.40

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Solution

The fourth proportional to 264.96, 365.54 and 154.40 is: 213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    264.96 : 365.54 = 154.40 : x
  2. Step 2: Convert to fraction form
    264.96/365.54 = 154.40/x
  3. Step 3: Cross multiply
    264.96x = 365.54 × 154.40
  4. Step 4: Simplify right side
    264.96x = 56,436.78
  5. Step 5: Solve for x
    x = 56,436.78/264.96
  6. Step 6: Final answer
    x = 213.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.