Home / 456,331.20-684,529.20-140,787.60

Finding the Fourth Proportional to 456,331.20, 684,529.20 and 140,787.60

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Solution

The fourth proportional to 456,331.20, 684,529.20 and 140,787.60 is: 211,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,331.20 : 684,529.20 = 140,787.60 : x
  2. Step 2: Convert to fraction form
    456,331.20/684,529.20 = 140,787.60/x
  3. Step 3: Cross multiply
    456,331.20x = 684,529.20 × 140,787.60
  4. Step 4: Simplify right side
    456,331.20x = 96,373,223,197.92
  5. Step 5: Solve for x
    x = 96,373,223,197.92/456,331.20
  6. Step 6: Final answer
    x = 211,191.40

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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.