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Finding the Fourth Proportional to 455,830.60, 684,183.30 and 231,444.40

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Solution

The fourth proportional to 455,830.60, 684,183.30 and 231,444.40 is: 347,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,830.60 : 684,183.30 = 231,444.40 : x
  2. Step 2: Convert to fraction form
    455,830.60/684,183.30 = 231,444.40/x
  3. Step 3: Cross multiply
    455,830.60x = 684,183.30 × 231,444.40
  4. Step 4: Simplify right side
    455,830.60x = 158,350,393,358.52
  5. Step 5: Solve for x
    x = 158,350,393,358.52/455,830.60
  6. Step 6: Final answer
    x = 347,388.69

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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.