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Finding the Fourth Proportional to 404,495.91, 558,205.97 and 223,213.05

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Solution

The fourth proportional to 404,495.91, 558,205.97 and 223,213.05 is: 308,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,495.91 : 558,205.97 = 223,213.05 : x
  2. Step 2: Convert to fraction form
    404,495.91/558,205.97 = 223,213.05/x
  3. Step 3: Cross multiply
    404,495.91x = 558,205.97 × 223,213.05
  4. Step 4: Simplify right side
    404,495.91x = 124,598,855,975.84
  5. Step 5: Solve for x
    x = 124,598,855,975.84/404,495.91
  6. Step 6: Final answer
    x = 308,034.90

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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.