Home / 215,049.10-322,464.30-126,329.80

Finding the Fourth Proportional to 215,049.10, 322,464.30 and 126,329.80

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Solution

The fourth proportional to 215,049.10, 322,464.30 and 126,329.80 is: 189,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,049.10 : 322,464.30 = 126,329.80 : x
  2. Step 2: Convert to fraction form
    215,049.10/322,464.30 = 126,329.80/x
  3. Step 3: Cross multiply
    215,049.10x = 322,464.30 × 126,329.80
  4. Step 4: Simplify right side
    215,049.10x = 40,736,850,526.14
  5. Step 5: Solve for x
    x = 40,736,850,526.14/215,049.10
  6. Step 6: Final answer
    x = 189,430.46

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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.