Home / 287,767.20-431,067.60-162,962.40

Finding the Fourth Proportional to 287,767.20, 431,067.60 and 162,962.40

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Solution

The fourth proportional to 287,767.20, 431,067.60 and 162,962.40 is: 244,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,767.20 : 431,067.60 = 162,962.40 : x
  2. Step 2: Convert to fraction form
    287,767.20/431,067.60 = 162,962.40/x
  3. Step 3: Cross multiply
    287,767.20x = 431,067.60 × 162,962.40
  4. Step 4: Simplify right side
    287,767.20x = 70,247,810,658.24
  5. Step 5: Solve for x
    x = 70,247,810,658.24/287,767.20
  6. Step 6: Final answer
    x = 244,113.33

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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.