Home / 253,784.52-380,849.04-135,540.72

Finding the Fourth Proportional to 253,784.52, 380,849.04 and 135,540.72

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Solution

The fourth proportional to 253,784.52, 380,849.04 and 135,540.72 is: 203,403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,784.52 : 380,849.04 = 135,540.72 : x
  2. Step 2: Convert to fraction form
    253,784.52/380,849.04 = 135,540.72/x
  3. Step 3: Cross multiply
    253,784.52x = 380,849.04 × 135,540.72
  4. Step 4: Simplify right side
    253,784.52x = 51,620,553,092.91
  5. Step 5: Solve for x
    x = 51,620,553,092.91/253,784.52
  6. Step 6: Final answer
    x = 203,403.08

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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.