Home / 245,856.60-339,281.66-138,427.11

Finding the Fourth Proportional to 245,856.60, 339,281.66 and 138,427.11

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Solution

The fourth proportional to 245,856.60, 339,281.66 and 138,427.11 is: 191,029.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,856.60 : 339,281.66 = 138,427.11 : x
  2. Step 2: Convert to fraction form
    245,856.60/339,281.66 = 138,427.11/x
  3. Step 3: Cross multiply
    245,856.60x = 339,281.66 × 138,427.11
  4. Step 4: Simplify right side
    245,856.60x = 46,965,780,015.87
  5. Step 5: Solve for x
    x = 46,965,780,015.87/245,856.60
  6. Step 6: Final answer
    x = 191,029.16

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