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Finding the Fourth Proportional to 482.04, 722.60 and 207.86

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Solution

The fourth proportional to 482.04, 722.60 and 207.86 is: 311.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.04 : 722.60 = 207.86 : x
  2. Step 2: Convert to fraction form
    482.04/722.60 = 207.86/x
  3. Step 3: Cross multiply
    482.04x = 722.60 × 207.86
  4. Step 4: Simplify right side
    482.04x = 150,199.64
  5. Step 5: Solve for x
    x = 150,199.64/482.04
  6. Step 6: Final answer
    x = 311.59

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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.