Home / 305,399.22-457,877.40-205,311.30

Finding the Fourth Proportional to 305,399.22, 457,877.40 and 205,311.30

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Solution

The fourth proportional to 305,399.22, 457,877.40 and 205,311.30 is: 307,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,399.22 : 457,877.40 = 205,311.30 : x
  2. Step 2: Convert to fraction form
    305,399.22/457,877.40 = 205,311.30/x
  3. Step 3: Cross multiply
    305,399.22x = 457,877.40 × 205,311.30
  4. Step 4: Simplify right side
    305,399.22x = 94,007,404,234.62
  5. Step 5: Solve for x
    x = 94,007,404,234.62/305,399.22
  6. Step 6: Final answer
    x = 307,818.09

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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.