Home / 320,966.40-482,486.40-228,115.20

Finding the Fourth Proportional to 320,966.40, 482,486.40 and 228,115.20

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Solution

The fourth proportional to 320,966.40, 482,486.40 and 228,115.20 is: 342,909.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,966.40 : 482,486.40 = 228,115.20 : x
  2. Step 2: Convert to fraction form
    320,966.40/482,486.40 = 228,115.20/x
  3. Step 3: Cross multiply
    320,966.40x = 482,486.40 × 228,115.20
  4. Step 4: Simplify right side
    320,966.40x = 110,062,481,633.28
  5. Step 5: Solve for x
    x = 110,062,481,633.28/320,966.40
  6. Step 6: Final answer
    x = 342,909.67

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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.