Home / 215,898.72-323,393.04-136,971.36

Finding the Fourth Proportional to 215,898.72, 323,393.04 and 136,971.36

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Solution

The fourth proportional to 215,898.72, 323,393.04 and 136,971.36 is: 205,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,898.72 : 323,393.04 = 136,971.36 : x
  2. Step 2: Convert to fraction form
    215,898.72/323,393.04 = 136,971.36/x
  3. Step 3: Cross multiply
    215,898.72x = 323,393.04 × 136,971.36
  4. Step 4: Simplify right side
    215,898.72x = 44,295,584,503.33
  5. Step 5: Solve for x
    x = 44,295,584,503.33/215,898.72
  6. Step 6: Final answer
    x = 205,168.35

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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.