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Finding the Fourth Proportional to 320,031.54, 441,659.97 and 176,790.42

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Solution

The fourth proportional to 320,031.54, 441,659.97 and 176,790.42 is: 243,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,031.54 : 441,659.97 = 176,790.42 : x
  2. Step 2: Convert to fraction form
    320,031.54/441,659.97 = 176,790.42/x
  3. Step 3: Cross multiply
    320,031.54x = 441,659.97 × 176,790.42
  4. Step 4: Simplify right side
    320,031.54x = 78,081,251,593.49
  5. Step 5: Solve for x
    x = 78,081,251,593.49/320,031.54
  6. Step 6: Final answer
    x = 243,979.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.