Home / 331,317.27-497,001.09-128,826.39

Finding the Fourth Proportional to 331,317.27, 497,001.09 and 128,826.39

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Solution

The fourth proportional to 331,317.27, 497,001.09 and 128,826.39 is: 193,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,317.27 : 497,001.09 = 128,826.39 : x
  2. Step 2: Convert to fraction form
    331,317.27/497,001.09 = 128,826.39/x
  3. Step 3: Cross multiply
    331,317.27x = 497,001.09 × 128,826.39
  4. Step 4: Simplify right side
    331,317.27x = 64,026,856,250.77
  5. Step 5: Solve for x
    x = 64,026,856,250.77/331,317.27
  6. Step 6: Final answer
    x = 193,249.38

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1.5x scale

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.