Home / 331,445.40-497,240.10-121,083

Finding the Fourth Proportional to 331,445.40, 497,240.10 and 121,083

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Solution

The fourth proportional to 331,445.40, 497,240.10 and 121,083 is: 181,650.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,445.40 : 497,240.10 = 121,083 : x
  2. Step 2: Convert to fraction form
    331,445.40/497,240.10 = 121,083/x
  3. Step 3: Cross multiply
    331,445.40x = 497,240.10 × 121,083
  4. Step 4: Simplify right side
    331,445.40x = 60,207,323,028.30
  5. Step 5: Solve for x
    x = 60,207,323,028.30/331,445.40
  6. Step 6: Final answer
    x = 181,650.80

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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.