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Finding the Fourth Proportional to 321,120.50, 443,146.82 and 175,923.09

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Solution

The fourth proportional to 321,120.50, 443,146.82 and 175,923.09 is: 242,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,120.50 : 443,146.82 = 175,923.09 : x
  2. Step 2: Convert to fraction form
    321,120.50/443,146.82 = 175,923.09/x
  3. Step 3: Cross multiply
    321,120.50x = 443,146.82 × 175,923.09
  4. Step 4: Simplify right side
    321,120.50x = 77,959,757,898.07
  5. Step 5: Solve for x
    x = 77,959,757,898.07/321,120.50
  6. Step 6: Final answer
    x = 242,774.15

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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.