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Finding the Fourth Proportional to 502.02, 752.58 and 193.79

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Solution

The fourth proportional to 502.02, 752.58 and 193.79 is: 290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.02 : 752.58 = 193.79 : x
  2. Step 2: Convert to fraction form
    502.02/752.58 = 193.79/x
  3. Step 3: Cross multiply
    502.02x = 752.58 × 193.79
  4. Step 4: Simplify right side
    502.02x = 145,838.72
  5. Step 5: Solve for x
    x = 145,838.72/502.02
  6. Step 6: Final answer
    x = 290.50

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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.