Home / 307,558.20-461,337.30-274,315.80

Finding the Fourth Proportional to 307,558.20, 461,337.30 and 274,315.80

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Solution

The fourth proportional to 307,558.20, 461,337.30 and 274,315.80 is: 411,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,558.20 : 461,337.30 = 274,315.80 : x
  2. Step 2: Convert to fraction form
    307,558.20/461,337.30 = 274,315.80/x
  3. Step 3: Cross multiply
    307,558.20x = 461,337.30 × 274,315.80
  4. Step 4: Simplify right side
    307,558.20x = 126,552,110,519.34
  5. Step 5: Solve for x
    x = 126,552,110,519.34/307,558.20
  6. Step 6: Final answer
    x = 411,473.70

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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.