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Finding the Fourth Proportional to 325,153.91, 487,777.60 and 100,531.86

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Solution

The fourth proportional to 325,153.91, 487,777.60 and 100,531.86 is: 150,812.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,153.91 : 487,777.60 = 100,531.86 : x
  2. Step 2: Convert to fraction form
    325,153.91/487,777.60 = 100,531.86/x
  3. Step 3: Cross multiply
    325,153.91x = 487,777.60 × 100,531.86
  4. Step 4: Simplify right side
    325,153.91x = 49,037,189,520.00
  5. Step 5: Solve for x
    x = 49,037,189,520.00/325,153.91
  6. Step 6: Final answer
    x = 150,812.24

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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.