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Finding the Fourth Proportional to 284, 426.04 and 146.98

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Solution

The fourth proportional to 284, 426.04 and 146.98 is: 220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    284 : 426.04 = 146.98 : x
  2. Step 2: Convert to fraction form
    284/426.04 = 146.98/x
  3. Step 3: Cross multiply
    284x = 426.04 × 146.98
  4. Step 4: Simplify right side
    284x = 62,619.36
  5. Step 5: Solve for x
    x = 62,619.36/284
  6. Step 6: Final answer
    x = 220.49

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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.