Home / 331,623.70-497,629.95-121,282.90

Finding the Fourth Proportional to 331,623.70, 497,629.95 and 121,282.90

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Solution

The fourth proportional to 331,623.70, 497,629.95 and 121,282.90 is: 181,995.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,623.70 : 497,629.95 = 121,282.90 : x
  2. Step 2: Convert to fraction form
    331,623.70/497,629.95 = 121,282.90/x
  3. Step 3: Cross multiply
    331,623.70x = 497,629.95 × 121,282.90
  4. Step 4: Simplify right side
    331,623.70x = 60,354,003,462.86
  5. Step 5: Solve for x
    x = 60,354,003,462.86/331,623.70
  6. Step 6: Final answer
    x = 181,995.45

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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.