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Finding the Fourth Proportional to 404,992.86, 558,886.63 and 223,717.45

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Solution

The fourth proportional to 404,992.86, 558,886.63 and 223,717.45 is: 308,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,992.86 : 558,886.63 = 223,717.45 : x
  2. Step 2: Convert to fraction form
    404,992.86/558,886.63 = 223,717.45/x
  3. Step 3: Cross multiply
    404,992.86x = 558,886.63 × 223,717.45
  4. Step 4: Simplify right side
    404,992.86x = 125,032,691,702.69
  5. Step 5: Solve for x
    x = 125,032,691,702.69/404,992.86
  6. Step 6: Final answer
    x = 308,728.14

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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.