Home / 331,582.60-497,316.30-121,112.20

Finding the Fourth Proportional to 331,582.60, 497,316.30 and 121,112.20

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Solution

The fourth proportional to 331,582.60, 497,316.30 and 121,112.20 is: 181,647.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,582.60 : 497,316.30 = 121,112.20 : x
  2. Step 2: Convert to fraction form
    331,582.60/497,316.30 = 121,112.20/x
  3. Step 3: Cross multiply
    331,582.60x = 497,316.30 × 121,112.20
  4. Step 4: Simplify right side
    331,582.60x = 60,231,071,188.86
  5. Step 5: Solve for x
    x = 60,231,071,188.86/331,582.60
  6. Step 6: Final answer
    x = 181,647.26

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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.