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Finding the Fourth Proportional to 530.04, 795.20 and 221.92

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Solution

The fourth proportional to 530.04, 795.20 and 221.92 is: 332.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.04 : 795.20 = 221.92 : x
  2. Step 2: Convert to fraction form
    530.04/795.20 = 221.92/x
  3. Step 3: Cross multiply
    530.04x = 795.20 × 221.92
  4. Step 4: Simplify right side
    530.04x = 176,470.78
  5. Step 5: Solve for x
    x = 176,470.78/530.04
  6. Step 6: Final answer
    x = 332.94

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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.