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Finding the Fourth Proportional to 320,990.38, 481,565.63 and 96,354.97

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Solution

The fourth proportional to 320,990.38, 481,565.63 and 96,354.97 is: 144,556.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,990.38 : 481,565.63 = 96,354.97 : x
  2. Step 2: Convert to fraction form
    320,990.38/481,565.63 = 96,354.97/x
  3. Step 3: Cross multiply
    320,990.38x = 481,565.63 × 96,354.97
  4. Step 4: Simplify right side
    320,990.38x = 46,401,241,831.68
  5. Step 5: Solve for x
    x = 46,401,241,831.68/320,990.38
  6. Step 6: Final answer
    x = 144,556.49

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1.5x scale

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.