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Finding the Fourth Proportional to 530.16, 794.96 and 221.92

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Solution

The fourth proportional to 530.16, 794.96 and 221.92 is: 332.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.16 : 794.96 = 221.92 : x
  2. Step 2: Convert to fraction form
    530.16/794.96 = 221.92/x
  3. Step 3: Cross multiply
    530.16x = 794.96 × 221.92
  4. Step 4: Simplify right side
    530.16x = 176,417.52
  5. Step 5: Solve for x
    x = 176,417.52/530.16
  6. Step 6: Final answer
    x = 332.76

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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.