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Finding the Fourth Proportional to 386,676.06, 533,610.63 and 225,518.46

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Solution

The fourth proportional to 386,676.06, 533,610.63 and 225,518.46 is: 311,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,676.06 : 533,610.63 = 225,518.46 : x
  2. Step 2: Convert to fraction form
    386,676.06/533,610.63 = 225,518.46/x
  3. Step 3: Cross multiply
    386,676.06x = 533,610.63 × 225,518.46
  4. Step 4: Simplify right side
    386,676.06x = 120,339,047,517.23
  5. Step 5: Solve for x
    x = 120,339,047,517.23/386,676.06
  6. Step 6: Final answer
    x = 311,214.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.