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Finding the Fourth Proportional to 269,717.70, 372,000.10 and 172,930.80

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Solution

The fourth proportional to 269,717.70, 372,000.10 and 172,930.80 is: 238,509.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,717.70 : 372,000.10 = 172,930.80 : x
  2. Step 2: Convert to fraction form
    269,717.70/372,000.10 = 172,930.80/x
  3. Step 3: Cross multiply
    269,717.70x = 372,000.10 × 172,930.80
  4. Step 4: Simplify right side
    269,717.70x = 64,330,274,028.43
  5. Step 5: Solve for x
    x = 64,330,274,028.43/269,717.70
  6. Step 6: Final answer
    x = 238,509.65

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1.5x scale

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.