Home / 215,047.10-322,461.30-126,327.80

Finding the Fourth Proportional to 215,047.10, 322,461.30 and 126,327.80

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Solution

The fourth proportional to 215,047.10, 322,461.30 and 126,327.80 is: 189,427.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,047.10 : 322,461.30 = 126,327.80 : x
  2. Step 2: Convert to fraction form
    215,047.10/322,461.30 = 126,327.80/x
  3. Step 3: Cross multiply
    215,047.10x = 322,461.30 × 126,327.80
  4. Step 4: Simplify right side
    215,047.10x = 40,735,826,614.14
  5. Step 5: Solve for x
    x = 40,735,826,614.14/215,047.10
  6. Step 6: Final answer
    x = 189,427.46

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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.