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Finding the Fourth Proportional to 172,227.60, 257,880.60 and 109,558.80

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Solution

The fourth proportional to 172,227.60, 257,880.60 and 109,558.80 is: 164,045.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,227.60 : 257,880.60 = 109,558.80 : x
  2. Step 2: Convert to fraction form
    172,227.60/257,880.60 = 109,558.80/x
  3. Step 3: Cross multiply
    172,227.60x = 257,880.60 × 109,558.80
  4. Step 4: Simplify right side
    172,227.60x = 28,253,089,079.28
  5. Step 5: Solve for x
    x = 28,253,089,079.28/172,227.60
  6. Step 6: Final answer
    x = 164,045.07

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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.