Home / 245,834.58-339,258.10-138,408.52

Finding the Fourth Proportional to 245,834.58, 339,258.10 and 138,408.52

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Solution

The fourth proportional to 245,834.58, 339,258.10 and 138,408.52 is: 191,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,834.58 : 339,258.10 = 138,408.52 : x
  2. Step 2: Convert to fraction form
    245,834.58/339,258.10 = 138,408.52/x
  3. Step 3: Cross multiply
    245,834.58x = 339,258.10 × 138,408.52
  4. Step 4: Simplify right side
    245,834.58x = 46,956,211,519.01
  5. Step 5: Solve for x
    x = 46,956,211,519.01/245,834.58
  6. Step 6: Final answer
    x = 191,007.35

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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.