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Finding the Fourth Proportional to 207,362.32, 311,209.56 and 107,551.12

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Solution

The fourth proportional to 207,362.32, 311,209.56 and 107,551.12 is: 161,412.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,362.32 : 311,209.56 = 107,551.12 : x
  2. Step 2: Convert to fraction form
    207,362.32/311,209.56 = 107,551.12/x
  3. Step 3: Cross multiply
    207,362.32x = 311,209.56 × 107,551.12
  4. Step 4: Simplify right side
    207,362.32x = 33,470,936,732.71
  5. Step 5: Solve for x
    x = 33,470,936,732.71/207,362.32
  6. Step 6: Final answer
    x = 161,412.82

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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.