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Finding the Fourth Proportional to 404,985.86, 558,877.82 and 223,709.48

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Solution

The fourth proportional to 404,985.86, 558,877.82 and 223,709.48 is: 308,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,985.86 : 558,877.82 = 223,709.48 : x
  2. Step 2: Convert to fraction form
    404,985.86/558,877.82 = 223,709.48/x
  3. Step 3: Cross multiply
    404,985.86x = 558,877.82 × 223,709.48
  4. Step 4: Simplify right side
    404,985.86x = 125,026,266,495.73
  5. Step 5: Solve for x
    x = 125,026,266,495.73/404,985.86
  6. Step 6: Final answer
    x = 308,717.61

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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.