Home / 245,869.44-339,271.74-138,436.71

Finding the Fourth Proportional to 245,869.44, 339,271.74 and 138,436.71

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Solution

The fourth proportional to 245,869.44, 339,271.74 and 138,436.71 is: 191,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,869.44 : 339,271.74 = 138,436.71 : x
  2. Step 2: Convert to fraction form
    245,869.44/339,271.74 = 138,436.71/x
  3. Step 3: Cross multiply
    245,869.44x = 339,271.74 × 138,436.71
  4. Step 4: Simplify right side
    245,869.44x = 46,967,663,481.58
  5. Step 5: Solve for x
    x = 46,967,663,481.58/245,869.44
  6. Step 6: Final answer
    x = 191,026.85

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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.