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Finding the Fourth Proportional to 368,758.60, 508,896.50 and 207,619.56

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Solution

The fourth proportional to 368,758.60, 508,896.50 and 207,619.56 is: 286,520.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,758.60 : 508,896.50 = 207,619.56 : x
  2. Step 2: Convert to fraction form
    368,758.60/508,896.50 = 207,619.56/x
  3. Step 3: Cross multiply
    368,758.60x = 508,896.50 × 207,619.56
  4. Step 4: Simplify right side
    368,758.60x = 105,656,867,415.54
  5. Step 5: Solve for x
    x = 105,656,867,415.54/368,758.60
  6. Step 6: Final answer
    x = 286,520.42

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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.