Home / 331,582.10-497,315.55-121,111.70

Finding the Fourth Proportional to 331,582.10, 497,315.55 and 121,111.70

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Solution

The fourth proportional to 331,582.10, 497,315.55 and 121,111.70 is: 181,646.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,582.10 : 497,315.55 = 121,111.70 : x
  2. Step 2: Convert to fraction form
    331,582.10/497,315.55 = 121,111.70/x
  3. Step 3: Cross multiply
    331,582.10x = 497,315.55 × 121,111.70
  4. Step 4: Simplify right side
    331,582.10x = 60,230,731,696.94
  5. Step 5: Solve for x
    x = 60,230,731,696.94/331,582.10
  6. Step 6: Final answer
    x = 181,646.51

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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.