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Finding the Fourth Proportional to 530.53, 795.79 and 165.31

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Solution

The fourth proportional to 530.53, 795.79 and 165.31 is: 247.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.53 : 795.79 = 165.31 : x
  2. Step 2: Convert to fraction form
    530.53/795.79 = 165.31/x
  3. Step 3: Cross multiply
    530.53x = 795.79 × 165.31
  4. Step 4: Simplify right side
    530.53x = 131,550.26
  5. Step 5: Solve for x
    x = 131,550.26/530.53
  6. Step 6: Final answer
    x = 247.96

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Double scale
Find fourth proportional to 531.53, 797.29 and 166.31
Similar ratio
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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.