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Finding the Fourth Proportional to 456,183.60, 684,372.60 and 140,672.40

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Solution

The fourth proportional to 456,183.60, 684,372.60 and 140,672.40 is: 211,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,183.60 : 684,372.60 = 140,672.40 : x
  2. Step 2: Convert to fraction form
    456,183.60/684,372.60 = 140,672.40/x
  3. Step 3: Cross multiply
    456,183.60x = 684,372.60 × 140,672.40
  4. Step 4: Simplify right side
    456,183.60x = 96,272,336,136.24
  5. Step 5: Solve for x
    x = 96,272,336,136.24/456,183.60
  6. Step 6: Final answer
    x = 211,038.57

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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.