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Finding the Fourth Proportional to 362,868.75, 500,020.37 and 280,697.79

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Solution

The fourth proportional to 362,868.75, 500,020.37 and 280,697.79 is: 386,791.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,868.75 : 500,020.37 = 280,697.79 : x
  2. Step 2: Convert to fraction form
    362,868.75/500,020.37 = 280,697.79/x
  3. Step 3: Cross multiply
    362,868.75x = 500,020.37 × 280,697.79
  4. Step 4: Simplify right side
    362,868.75x = 140,354,611,410.49
  5. Step 5: Solve for x
    x = 140,354,611,410.49/362,868.75
  6. Step 6: Final answer
    x = 386,791.67

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1.5x scale

Why These Related Problems?

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