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Finding the Fourth Proportional to 284.33, 429.11 and 277.04

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Solution

The fourth proportional to 284.33, 429.11 and 277.04 is: 418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.33 : 429.11 = 277.04 : x
  2. Step 2: Convert to fraction form
    284.33/429.11 = 277.04/x
  3. Step 3: Cross multiply
    284.33x = 429.11 × 277.04
  4. Step 4: Simplify right side
    284.33x = 118,877.10
  5. Step 5: Solve for x
    x = 118,877.10/284.33
  6. Step 6: Final answer
    x = 418.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.