Home / 354,764.60-531,455.70-214,105.40

Finding the Fourth Proportional to 354,764.60, 531,455.70 and 214,105.40

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Solution

The fourth proportional to 354,764.60, 531,455.70 and 214,105.40 is: 320,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,764.60 : 531,455.70 = 214,105.40 : x
  2. Step 2: Convert to fraction form
    354,764.60/531,455.70 = 214,105.40/x
  3. Step 3: Cross multiply
    354,764.60x = 531,455.70 × 214,105.40
  4. Step 4: Simplify right side
    354,764.60x = 113,787,535,230.78
  5. Step 5: Solve for x
    x = 113,787,535,230.78/354,764.60
  6. Step 6: Final answer
    x = 320,740.95

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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.