Home / 400,136.98-552,168.39-218,813.62

Finding the Fourth Proportional to 400,136.98, 552,168.39 and 218,813.62

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Solution

The fourth proportional to 400,136.98, 552,168.39 and 218,813.62 is: 301,951.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,136.98 : 552,168.39 = 218,813.62 : x
  2. Step 2: Convert to fraction form
    400,136.98/552,168.39 = 218,813.62/x
  3. Step 3: Cross multiply
    400,136.98x = 552,168.39 × 218,813.62
  4. Step 4: Simplify right side
    400,136.98x = 120,821,964,265.47
  5. Step 5: Solve for x
    x = 120,821,964,265.47/400,136.98
  6. Step 6: Final answer
    x = 301,951.51

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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.