Home / 315,961.04-473,679.12-220,919.48

Finding the Fourth Proportional to 315,961.04, 473,679.12 and 220,919.48

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Solution

The fourth proportional to 315,961.04, 473,679.12 and 220,919.48 is: 331,195.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,961.04 : 473,679.12 = 220,919.48 : x
  2. Step 2: Convert to fraction form
    315,961.04/473,679.12 = 220,919.48/x
  3. Step 3: Cross multiply
    315,961.04x = 473,679.12 × 220,919.48
  4. Step 4: Simplify right side
    315,961.04x = 104,644,944,877.26
  5. Step 5: Solve for x
    x = 104,644,944,877.26/315,961.04
  6. Step 6: Final answer
    x = 331,195.72

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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.