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Finding the Fourth Proportional to 172,624.44, 258,914.70 and 72,824.28

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Solution

The fourth proportional to 172,624.44, 258,914.70 and 72,824.28 is: 109,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,624.44 : 258,914.70 = 72,824.28 : x
  2. Step 2: Convert to fraction form
    172,624.44/258,914.70 = 72,824.28/x
  3. Step 3: Cross multiply
    172,624.44x = 258,914.70 × 72,824.28
  4. Step 4: Simplify right side
    172,624.44x = 18,855,276,608.92
  5. Step 5: Solve for x
    x = 18,855,276,608.92/172,624.44
  6. Step 6: Final answer
    x = 109,227.16

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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.