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Finding the Fourth Proportional to 361,499.23, 498,754.93 and 208,516.91

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Solution

The fourth proportional to 361,499.23, 498,754.93 and 208,516.91 is: 287,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,499.23 : 498,754.93 = 208,516.91 : x
  2. Step 2: Convert to fraction form
    361,499.23/498,754.93 = 208,516.91/x
  3. Step 3: Cross multiply
    361,499.23x = 498,754.93 × 208,516.91
  4. Step 4: Simplify right side
    361,499.23x = 103,998,836,850.87
  5. Step 5: Solve for x
    x = 103,998,836,850.87/361,499.23
  6. Step 6: Final answer
    x = 287,687.58

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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.