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Finding the Fourth Proportional to 284.65, 427.62 and 202.58

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Solution

The fourth proportional to 284.65, 427.62 and 202.58 is: 304.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.65 : 427.62 = 202.58 : x
  2. Step 2: Convert to fraction form
    284.65/427.62 = 202.58/x
  3. Step 3: Cross multiply
    284.65x = 427.62 × 202.58
  4. Step 4: Simplify right side
    284.65x = 86,628.33
  5. Step 5: Solve for x
    x = 86,628.33/284.65
  6. Step 6: Final answer
    x = 304.34

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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.