Home / 320,967.13-481,456.17-121,381.51

Finding the Fourth Proportional to 320,967.13, 481,456.17 and 121,381.51

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Solution

The fourth proportional to 320,967.13, 481,456.17 and 121,381.51 is: 182,074.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,967.13 : 481,456.17 = 121,381.51 : x
  2. Step 2: Convert to fraction form
    320,967.13/481,456.17 = 121,381.51/x
  3. Step 3: Cross multiply
    320,967.13x = 481,456.17 × 121,381.51
  4. Step 4: Simplify right side
    320,967.13x = 58,439,876,913.42
  5. Step 5: Solve for x
    x = 58,439,876,913.42/320,967.13
  6. Step 6: Final answer
    x = 182,074.34

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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.