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Finding the Fourth Proportional to 456,096.20, 684,209.10 and 140,520.20

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Solution

The fourth proportional to 456,096.20, 684,209.10 and 140,520.20 is: 210,800.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,096.20 : 684,209.10 = 140,520.20 : x
  2. Step 2: Convert to fraction form
    456,096.20/684,209.10 = 140,520.20/x
  3. Step 3: Cross multiply
    456,096.20x = 684,209.10 × 140,520.20
  4. Step 4: Simplify right side
    456,096.20x = 96,145,199,573.82
  5. Step 5: Solve for x
    x = 96,145,199,573.82/456,096.20
  6. Step 6: Final answer
    x = 210,800.26

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1.5x scale

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.