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Finding the Fourth Proportional to 282.74, 423.62 and 152.43

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Solution

The fourth proportional to 282.74, 423.62 and 152.43 is: 228.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.74 : 423.62 = 152.43 : x
  2. Step 2: Convert to fraction form
    282.74/423.62 = 152.43/x
  3. Step 3: Cross multiply
    282.74x = 423.62 × 152.43
  4. Step 4: Simplify right side
    282.74x = 64,572.40
  5. Step 5: Solve for x
    x = 64,572.40/282.74
  6. Step 6: Final answer
    x = 228.38

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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.