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Finding the Fourth Proportional to 172,880.48, 238,472.24 and 134,579.40

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Solution

The fourth proportional to 172,880.48, 238,472.24 and 134,579.40 is: 185,639.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,880.48 : 238,472.24 = 134,579.40 : x
  2. Step 2: Convert to fraction form
    172,880.48/238,472.24 = 134,579.40/x
  3. Step 3: Cross multiply
    172,880.48x = 238,472.24 × 134,579.40
  4. Step 4: Simplify right side
    172,880.48x = 32,093,451,312.30
  5. Step 5: Solve for x
    x = 32,093,451,312.30/172,880.48
  6. Step 6: Final answer
    x = 185,639.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.