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Finding the Fourth Proportional to 404,918.68, 558,777.62 and 221,149.62

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Solution

The fourth proportional to 404,918.68, 558,777.62 and 221,149.62 is: 305,180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,918.68 : 558,777.62 = 221,149.62 : x
  2. Step 2: Convert to fraction form
    404,918.68/558,777.62 = 221,149.62/x
  3. Step 3: Cross multiply
    404,918.68x = 558,777.62 × 221,149.62
  4. Step 4: Simplify right side
    404,918.68x = 123,573,458,327.50
  5. Step 5: Solve for x
    x = 123,573,458,327.50/404,918.68
  6. Step 6: Final answer
    x = 305,180.93

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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.