Home / 207,186.30-310,660.38-100,533.60

Finding the Fourth Proportional to 207,186.30, 310,660.38 and 100,533.60

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Solution

The fourth proportional to 207,186.30, 310,660.38 and 100,533.60 is: 150,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,186.30 : 310,660.38 = 100,533.60 : x
  2. Step 2: Convert to fraction form
    207,186.30/310,660.38 = 100,533.60/x
  3. Step 3: Cross multiply
    207,186.30x = 310,660.38 × 100,533.60
  4. Step 4: Simplify right side
    207,186.30x = 31,231,806,378.77
  5. Step 5: Solve for x
    x = 31,231,806,378.77/207,186.30
  6. Step 6: Final answer
    x = 150,742.62

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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.