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Finding the Fourth Proportional to 283.04, 424.56 and 100.40

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Solution

The fourth proportional to 283.04, 424.56 and 100.40 is: 150.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.04 : 424.56 = 100.40 : x
  2. Step 2: Convert to fraction form
    283.04/424.56 = 100.40/x
  3. Step 3: Cross multiply
    283.04x = 424.56 × 100.40
  4. Step 4: Simplify right side
    283.04x = 42,623.20
  5. Step 5: Solve for x
    x = 42,623.20/283.04
  6. Step 6: Final answer
    x = 150.59

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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.