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Finding the Fourth Proportional to 313,012.73, 469,556.33 and 99,705.72

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Solution

The fourth proportional to 313,012.73, 469,556.33 and 99,705.72 is: 149,570.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,012.73 : 469,556.33 = 99,705.72 : x
  2. Step 2: Convert to fraction form
    313,012.73/469,556.33 = 99,705.72/x
  3. Step 3: Cross multiply
    313,012.73x = 469,556.33 × 99,705.72
  4. Step 4: Simplify right side
    313,012.73x = 46,817,451,464.68
  5. Step 5: Solve for x
    x = 46,817,451,464.68/313,012.73
  6. Step 6: Final answer
    x = 149,570.44

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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.