Home / 215,464.40-322,972.08-120,555.43

Finding the Fourth Proportional to 215,464.40, 322,972.08 and 120,555.43

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Solution

The fourth proportional to 215,464.40, 322,972.08 and 120,555.43 is: 180,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,464.40 : 322,972.08 = 120,555.43 : x
  2. Step 2: Convert to fraction form
    215,464.40/322,972.08 = 120,555.43/x
  3. Step 3: Cross multiply
    215,464.40x = 322,972.08 × 120,555.43
  4. Step 4: Simplify right side
    215,464.40x = 38,936,038,878.66
  5. Step 5: Solve for x
    x = 38,936,038,878.66/215,464.40
  6. Step 6: Final answer
    x = 180,707.53

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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.