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Finding the Fourth Proportional to 361,950.90, 499,515.91 and 208,995.54

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Solution

The fourth proportional to 361,950.90, 499,515.91 and 208,995.54 is: 288,427.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,950.90 : 499,515.91 = 208,995.54 : x
  2. Step 2: Convert to fraction form
    361,950.90/499,515.91 = 208,995.54/x
  3. Step 3: Cross multiply
    361,950.90x = 499,515.91 × 208,995.54
  4. Step 4: Simplify right side
    361,950.90x = 104,396,597,349.04
  5. Step 5: Solve for x
    x = 104,396,597,349.04/361,950.90
  6. Step 6: Final answer
    x = 288,427.51

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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.