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Finding the Fourth Proportional to 508.58, 763.02 and 200.48

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Solution

The fourth proportional to 508.58, 763.02 and 200.48 is: 300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.58 : 763.02 = 200.48 : x
  2. Step 2: Convert to fraction form
    508.58/763.02 = 200.48/x
  3. Step 3: Cross multiply
    508.58x = 763.02 × 200.48
  4. Step 4: Simplify right side
    508.58x = 152,966.43
  5. Step 5: Solve for x
    x = 152,966.43/508.58
  6. Step 6: Final answer
    x = 300.77

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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.