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Finding the Fourth Proportional to 527.10, 790.34 and 202.39

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Solution

The fourth proportional to 527.10, 790.34 and 202.39 is: 303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.10 : 790.34 = 202.39 : x
  2. Step 2: Convert to fraction form
    527.10/790.34 = 202.39/x
  3. Step 3: Cross multiply
    527.10x = 790.34 × 202.39
  4. Step 4: Simplify right side
    527.10x = 159,956.91
  5. Step 5: Solve for x
    x = 159,956.91/527.10
  6. Step 6: Final answer
    x = 303.47

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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.