Home / 331,581.60-497,314.80-121,111.20

Finding the Fourth Proportional to 331,581.60, 497,314.80 and 121,111.20

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Solution

The fourth proportional to 331,581.60, 497,314.80 and 121,111.20 is: 181,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,581.60 : 497,314.80 = 121,111.20 : x
  2. Step 2: Convert to fraction form
    331,581.60/497,314.80 = 121,111.20/x
  3. Step 3: Cross multiply
    331,581.60x = 497,314.80 × 121,111.20
  4. Step 4: Simplify right side
    331,581.60x = 60,230,392,205.76
  5. Step 5: Solve for x
    x = 60,230,392,205.76/331,581.60
  6. Step 6: Final answer
    x = 181,645.76

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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.