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Finding the Fourth Proportional to 324,187.20, 486,280.80 and 102,571.20

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Solution

The fourth proportional to 324,187.20, 486,280.80 and 102,571.20 is: 153,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,187.20 : 486,280.80 = 102,571.20 : x
  2. Step 2: Convert to fraction form
    324,187.20/486,280.80 = 102,571.20/x
  3. Step 3: Cross multiply
    324,187.20x = 486,280.80 × 102,571.20
  4. Step 4: Simplify right side
    324,187.20x = 49,878,405,192.96
  5. Step 5: Solve for x
    x = 49,878,405,192.96/324,187.20
  6. Step 6: Final answer
    x = 153,856.80

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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.