Home / 272,500.09-408,811.64-82,977.40

Finding the Fourth Proportional to 272,500.09, 408,811.64 and 82,977.40

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Solution

The fourth proportional to 272,500.09, 408,811.64 and 82,977.40 is: 124,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,500.09 : 408,811.64 = 82,977.40 : x
  2. Step 2: Convert to fraction form
    272,500.09/408,811.64 = 82,977.40/x
  3. Step 3: Cross multiply
    272,500.09x = 408,811.64 × 82,977.40
  4. Step 4: Simplify right side
    272,500.09x = 33,922,126,562.05
  5. Step 5: Solve for x
    x = 33,922,126,562.05/272,500.09
  6. Step 6: Final answer
    x = 124,484.83

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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.