Home / 202,378.17-279,280.08-111,732.18

Finding the Fourth Proportional to 202,378.17, 279,280.08 and 111,732.18

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Solution

The fourth proportional to 202,378.17, 279,280.08 and 111,732.18 is: 154,189.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,378.17 : 279,280.08 = 111,732.18 : x
  2. Step 2: Convert to fraction form
    202,378.17/279,280.08 = 111,732.18/x
  3. Step 3: Cross multiply
    202,378.17x = 279,280.08 × 111,732.18
  4. Step 4: Simplify right side
    202,378.17x = 31,204,573,163.85
  5. Step 5: Solve for x
    x = 31,204,573,163.85/202,378.17
  6. Step 6: Final answer
    x = 154,189.42

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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.