Home / 305,186.32-457,692-91,974.88

Finding the Fourth Proportional to 305,186.32, 457,692 and 91,974.88

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Solution

The fourth proportional to 305,186.32, 457,692 and 91,974.88 is: 137,935.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,186.32 : 457,692 = 91,974.88 : x
  2. Step 2: Convert to fraction form
    305,186.32/457,692 = 91,974.88/x
  3. Step 3: Cross multiply
    305,186.32x = 457,692 × 91,974.88
  4. Step 4: Simplify right side
    305,186.32x = 42,096,166,776.96
  5. Step 5: Solve for x
    x = 42,096,166,776.96/305,186.32
  6. Step 6: Final answer
    x = 137,935.96

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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.