Home / 245,733.57-339,123.24-138,310.56

Finding the Fourth Proportional to 245,733.57, 339,123.24 and 138,310.56

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Solution

The fourth proportional to 245,733.57, 339,123.24 and 138,310.56 is: 190,874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,733.57 : 339,123.24 = 138,310.56 : x
  2. Step 2: Convert to fraction form
    245,733.57/339,123.24 = 138,310.56/x
  3. Step 3: Cross multiply
    245,733.57x = 339,123.24 × 138,310.56
  4. Step 4: Simplify right side
    245,733.57x = 46,904,325,233.41
  5. Step 5: Solve for x
    x = 46,904,325,233.41/245,733.57
  6. Step 6: Final answer
    x = 190,874.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.