Home / 311,068.20-429,161.85-203,699.46

Finding the Fourth Proportional to 311,068.20, 429,161.85 and 203,699.46

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Solution

The fourth proportional to 311,068.20, 429,161.85 and 203,699.46 is: 281,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,068.20 : 429,161.85 = 203,699.46 : x
  2. Step 2: Convert to fraction form
    311,068.20/429,161.85 = 203,699.46/x
  3. Step 3: Cross multiply
    311,068.20x = 429,161.85 × 203,699.46
  4. Step 4: Simplify right side
    311,068.20x = 87,420,037,097.60
  5. Step 5: Solve for x
    x = 87,420,037,097.60/311,068.20
  6. Step 6: Final answer
    x = 281,031.74

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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.