Home / 456,431.10-684,743.85-140,919.90

Finding the Fourth Proportional to 456,431.10, 684,743.85 and 140,919.90

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Solution

The fourth proportional to 456,431.10, 684,743.85 and 140,919.90 is: 211,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,431.10 : 684,743.85 = 140,919.90 : x
  2. Step 2: Convert to fraction form
    456,431.10/684,743.85 = 140,919.90/x
  3. Step 3: Cross multiply
    456,431.10x = 684,743.85 × 140,919.90
  4. Step 4: Simplify right side
    456,431.10x = 96,494,034,867.62
  5. Step 5: Solve for x
    x = 96,494,034,867.62/456,431.10
  6. Step 6: Final answer
    x = 211,409.86

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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.