Home / 354,320.20-531,512.70-143,914.60

Finding the Fourth Proportional to 354,320.20, 531,512.70 and 143,914.60

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Solution

The fourth proportional to 354,320.20, 531,512.70 and 143,914.60 is: 215,885.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,320.20 : 531,512.70 = 143,914.60 : x
  2. Step 2: Convert to fraction form
    354,320.20/531,512.70 = 143,914.60/x
  3. Step 3: Cross multiply
    354,320.20x = 531,512.70 × 143,914.60
  4. Step 4: Simplify right side
    354,320.20x = 76,492,437,615.42
  5. Step 5: Solve for x
    x = 76,492,437,615.42/354,320.20
  6. Step 6: Final answer
    x = 215,885.06

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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.