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Finding the Fourth Proportional to 619.03, 928.02 and 272.10

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Solution

The fourth proportional to 619.03, 928.02 and 272.10 is: 407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.03 : 928.02 = 272.10 : x
  2. Step 2: Convert to fraction form
    619.03/928.02 = 272.10/x
  3. Step 3: Cross multiply
    619.03x = 928.02 × 272.10
  4. Step 4: Simplify right side
    619.03x = 252,514.24
  5. Step 5: Solve for x
    x = 252,514.24/619.03
  6. Step 6: Final answer
    x = 407.92

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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.