Home / 207,384.20-311,101.98-74,278.76

Finding the Fourth Proportional to 207,384.20, 311,101.98 and 74,278.76

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Solution

The fourth proportional to 207,384.20, 311,101.98 and 74,278.76 is: 111,427.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,384.20 : 311,101.98 = 74,278.76 : x
  2. Step 2: Convert to fraction form
    207,384.20/311,101.98 = 74,278.76/x
  3. Step 3: Cross multiply
    207,384.20x = 311,101.98 × 74,278.76
  4. Step 4: Simplify right side
    207,384.20x = 23,108,269,307.94
  5. Step 5: Solve for x
    x = 23,108,269,307.94/207,384.20
  6. Step 6: Final answer
    x = 111,427.34

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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.