Home / 305,944.32-458,758.90-137,320.09

Finding the Fourth Proportional to 305,944.32, 458,758.90 and 137,320.09

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Solution

The fourth proportional to 305,944.32, 458,758.90 and 137,320.09 is: 205,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,944.32 : 458,758.90 = 137,320.09 : x
  2. Step 2: Convert to fraction form
    305,944.32/458,758.90 = 137,320.09/x
  3. Step 3: Cross multiply
    305,944.32x = 458,758.90 × 137,320.09
  4. Step 4: Simplify right side
    305,944.32x = 62,996,813,436.30
  5. Step 5: Solve for x
    x = 62,996,813,436.30/305,944.32
  6. Step 6: Final answer
    x = 205,909.41

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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.