Home / 354,610.20-531,915.30-144,139.80

Finding the Fourth Proportional to 354,610.20, 531,915.30 and 144,139.80

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Solution

The fourth proportional to 354,610.20, 531,915.30 and 144,139.80 is: 216,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,610.20 : 531,915.30 = 144,139.80 : x
  2. Step 2: Convert to fraction form
    354,610.20/531,915.30 = 144,139.80/x
  3. Step 3: Cross multiply
    354,610.20x = 531,915.30 × 144,139.80
  4. Step 4: Simplify right side
    354,610.20x = 76,670,164,958.94
  5. Step 5: Solve for x
    x = 76,670,164,958.94/354,610.20
  6. Step 6: Final answer
    x = 216,209.70

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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.