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Finding the Fourth Proportional to 568.47, 852.55 and 203.19

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Solution

The fourth proportional to 568.47, 852.55 and 203.19 is: 304.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.47 : 852.55 = 203.19 : x
  2. Step 2: Convert to fraction form
    568.47/852.55 = 203.19/x
  3. Step 3: Cross multiply
    568.47x = 852.55 × 203.19
  4. Step 4: Simplify right side
    568.47x = 173,225.93
  5. Step 5: Solve for x
    x = 173,225.93/568.47
  6. Step 6: Final answer
    x = 304.72

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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.