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Finding the Fourth Proportional to 369,195.36, 509,489.82 and 199,429.56

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Solution

The fourth proportional to 369,195.36, 509,489.82 and 199,429.56 is: 275,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,195.36 : 509,489.82 = 199,429.56 : x
  2. Step 2: Convert to fraction form
    369,195.36/509,489.82 = 199,429.56/x
  3. Step 3: Cross multiply
    369,195.36x = 509,489.82 × 199,429.56
  4. Step 4: Simplify right side
    369,195.36x = 101,607,330,627.08
  5. Step 5: Solve for x
    x = 101,607,330,627.08/369,195.36
  6. Step 6: Final answer
    x = 275,212.91

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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.