Home / 225,877.08-311,720.14-135,215.50

Finding the Fourth Proportional to 225,877.08, 311,720.14 and 135,215.50

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Solution

The fourth proportional to 225,877.08, 311,720.14 and 135,215.50 is: 186,603.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,877.08 : 311,720.14 = 135,215.50 : x
  2. Step 2: Convert to fraction form
    225,877.08/311,720.14 = 135,215.50/x
  3. Step 3: Cross multiply
    225,877.08x = 311,720.14 × 135,215.50
  4. Step 4: Simplify right side
    225,877.08x = 42,149,394,590.17
  5. Step 5: Solve for x
    x = 42,149,394,590.17/225,877.08
  6. Step 6: Final answer
    x = 186,603.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.