Home / 456,189.20-684,429.60-156,861.80

Finding the Fourth Proportional to 456,189.20, 684,429.60 and 156,861.80

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Solution

The fourth proportional to 456,189.20, 684,429.60 and 156,861.80 is: 235,342.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,189.20 : 684,429.60 = 156,861.80 : x
  2. Step 2: Convert to fraction form
    456,189.20/684,429.60 = 156,861.80/x
  3. Step 3: Cross multiply
    456,189.20x = 684,429.60 × 156,861.80
  4. Step 4: Simplify right side
    456,189.20x = 107,360,859,029.28
  5. Step 5: Solve for x
    x = 107,360,859,029.28/456,189.20
  6. Step 6: Final answer
    x = 235,342.83

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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.