Home / 331,981.60-497,914.80-121,511.20

Finding the Fourth Proportional to 331,981.60, 497,914.80 and 121,511.20

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Solution

The fourth proportional to 331,981.60, 497,914.80 and 121,511.20 is: 182,245.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,981.60 : 497,914.80 = 121,511.20 : x
  2. Step 2: Convert to fraction form
    331,981.60/497,914.80 = 121,511.20/x
  3. Step 3: Cross multiply
    331,981.60x = 497,914.80 × 121,511.20
  4. Step 4: Simplify right side
    331,981.60x = 60,502,224,845.76
  5. Step 5: Solve for x
    x = 60,502,224,845.76/331,981.60
  6. Step 6: Final answer
    x = 182,245.72

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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.