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Finding the Fourth Proportional to 530.28, 795.31 and 310.82

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Solution

The fourth proportional to 530.28, 795.31 and 310.82 is: 466.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.28 : 795.31 = 310.82 : x
  2. Step 2: Convert to fraction form
    530.28/795.31 = 310.82/x
  3. Step 3: Cross multiply
    530.28x = 795.31 × 310.82
  4. Step 4: Simplify right side
    530.28x = 247,193.50
  5. Step 5: Solve for x
    x = 247,193.50/530.28
  6. Step 6: Final answer
    x = 466.16

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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.