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Finding the Fourth Proportional to 283.62, 423.68 and 240.08

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Solution

The fourth proportional to 283.62, 423.68 and 240.08 is: 358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.62 : 423.68 = 240.08 : x
  2. Step 2: Convert to fraction form
    283.62/423.68 = 240.08/x
  3. Step 3: Cross multiply
    283.62x = 423.68 × 240.08
  4. Step 4: Simplify right side
    283.62x = 101,718.75
  5. Step 5: Solve for x
    x = 101,718.75/283.62
  6. Step 6: Final answer
    x = 358.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.