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Finding the Fourth Proportional to 303,407.67, 455,314.67 and 125,914.85

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Solution

The fourth proportional to 303,407.67, 455,314.67 and 125,914.85 is: 188,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,407.67 : 455,314.67 = 125,914.85 : x
  2. Step 2: Convert to fraction form
    303,407.67/455,314.67 = 125,914.85/x
  3. Step 3: Cross multiply
    303,407.67x = 455,314.67 × 125,914.85
  4. Step 4: Simplify right side
    303,407.67x = 57,330,875,469.70
  5. Step 5: Solve for x
    x = 57,330,875,469.70/303,407.67
  6. Step 6: Final answer
    x = 188,956.58

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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.