Home / 305,190.20-457,461.30-147,315.80

Finding the Fourth Proportional to 305,190.20, 457,461.30 and 147,315.80

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Solution

The fourth proportional to 305,190.20, 457,461.30 and 147,315.80 is: 220,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,190.20 : 457,461.30 = 147,315.80 : x
  2. Step 2: Convert to fraction form
    305,190.20/457,461.30 = 147,315.80/x
  3. Step 3: Cross multiply
    305,190.20x = 457,461.30 × 147,315.80
  4. Step 4: Simplify right side
    305,190.20x = 67,391,277,378.54
  5. Step 5: Solve for x
    x = 67,391,277,378.54/305,190.20
  6. Step 6: Final answer
    x = 220,817.30

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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.