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Finding the Fourth Proportional to 182.40, 278.40 and 182.40

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Solution

The fourth proportional to 182.40, 278.40 and 182.40 is: 278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.40 : 278.40 = 182.40 : x
  2. Step 2: Convert to fraction form
    182.40/278.40 = 182.40/x
  3. Step 3: Cross multiply
    182.40x = 278.40 × 182.40
  4. Step 4: Simplify right side
    182.40x = 50,780.16
  5. Step 5: Solve for x
    x = 50,780.16/182.40
  6. Step 6: Final answer
    x = 278.40

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.