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Finding the Fourth Proportional to 206.48, 284.72 and 184.32

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Solution

The fourth proportional to 206.48, 284.72 and 184.32 is: 254.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.48 : 284.72 = 184.32 : x
  2. Step 2: Convert to fraction form
    206.48/284.72 = 184.32/x
  3. Step 3: Cross multiply
    206.48x = 284.72 × 184.32
  4. Step 4: Simplify right side
    206.48x = 52,479.59
  5. Step 5: Solve for x
    x = 52,479.59/206.48
  6. Step 6: Final answer
    x = 254.16

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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.