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Finding the Fourth Proportional to 207,901.23, 311,856.71 and 67,670.79

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Solution

The fourth proportional to 207,901.23, 311,856.71 and 67,670.79 is: 101,507.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,901.23 : 311,856.71 = 67,670.79 : x
  2. Step 2: Convert to fraction form
    207,901.23/311,856.71 = 67,670.79/x
  3. Step 3: Cross multiply
    207,901.23x = 311,856.71 × 67,670.79
  4. Step 4: Simplify right side
    207,901.23x = 21,103,589,594.15
  5. Step 5: Solve for x
    x = 21,103,589,594.15/207,901.23
  6. Step 6: Final answer
    x = 101,507.77

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1.5x scale

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.