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Finding the Fourth Proportional to 371,010.60, 556,515.90 and 90,527.85

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Solution

The fourth proportional to 371,010.60, 556,515.90 and 90,527.85 is: 135,791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,010.60 : 556,515.90 = 90,527.85 : x
  2. Step 2: Convert to fraction form
    371,010.60/556,515.90 = 90,527.85/x
  3. Step 3: Cross multiply
    371,010.60x = 556,515.90 × 90,527.85
  4. Step 4: Simplify right side
    371,010.60x = 50,380,187,917.82
  5. Step 5: Solve for x
    x = 50,380,187,917.82/371,010.60
  6. Step 6: Final answer
    x = 135,791.78

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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.