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Finding the Fourth Proportional to 530.67, 795.92 and 145.92

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Solution

The fourth proportional to 530.67, 795.92 and 145.92 is: 218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.67 : 795.92 = 145.92 : x
  2. Step 2: Convert to fraction form
    530.67/795.92 = 145.92/x
  3. Step 3: Cross multiply
    530.67x = 795.92 × 145.92
  4. Step 4: Simplify right side
    530.67x = 116,139.92
  5. Step 5: Solve for x
    x = 116,139.92/530.67
  6. Step 6: Final answer
    x = 218.86

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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.