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Finding the Fourth Proportional to 404,636.88, 558,398.94 and 223,348.89

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Solution

The fourth proportional to 404,636.88, 558,398.94 and 223,348.89 is: 308,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,636.88 : 558,398.94 = 223,348.89 : x
  2. Step 2: Convert to fraction form
    404,636.88/558,398.94 = 223,348.89/x
  3. Step 3: Cross multiply
    404,636.88x = 558,398.94 × 223,348.89
  4. Step 4: Simplify right side
    404,636.88x = 124,717,783,426.18
  5. Step 5: Solve for x
    x = 124,717,783,426.18/404,636.88
  6. Step 6: Final answer
    x = 308,221.49

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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.