Home / 307,558.20-461,337.30-213,079.80

Finding the Fourth Proportional to 307,558.20, 461,337.30 and 213,079.80

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Solution

The fourth proportional to 307,558.20, 461,337.30 and 213,079.80 is: 319,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,558.20 : 461,337.30 = 213,079.80 : x
  2. Step 2: Convert to fraction form
    307,558.20/461,337.30 = 213,079.80/x
  3. Step 3: Cross multiply
    307,558.20x = 461,337.30 × 213,079.80
  4. Step 4: Simplify right side
    307,558.20x = 98,301,659,616.54
  5. Step 5: Solve for x
    x = 98,301,659,616.54/307,558.20
  6. Step 6: Final answer
    x = 319,619.70

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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.