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Finding the Fourth Proportional to 207,555.08, 311,376.32 and 67,302.76

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Solution

The fourth proportional to 207,555.08, 311,376.32 and 67,302.76 is: 100,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,555.08 : 311,376.32 = 67,302.76 : x
  2. Step 2: Convert to fraction form
    207,555.08/311,376.32 = 67,302.76/x
  3. Step 3: Cross multiply
    207,555.08x = 311,376.32 × 67,302.76
  4. Step 4: Simplify right side
    207,555.08x = 20,956,485,734.64
  5. Step 5: Solve for x
    x = 20,956,485,734.64/207,555.08
  6. Step 6: Final answer
    x = 100,968.31

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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.