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Finding the Fourth Proportional to 208,455.53, 313,101.68 and 124,379.73

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Solution

The fourth proportional to 208,455.53, 313,101.68 and 124,379.73 is: 186,819.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,455.53 : 313,101.68 = 124,379.73 : x
  2. Step 2: Convert to fraction form
    208,455.53/313,101.68 = 124,379.73/x
  3. Step 3: Cross multiply
    208,455.53x = 313,101.68 × 124,379.73
  4. Step 4: Simplify right side
    208,455.53x = 38,943,501,799.05
  5. Step 5: Solve for x
    x = 38,943,501,799.05/208,455.53
  6. Step 6: Final answer
    x = 186,819.24

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1.5x scale

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.