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Finding the Fourth Proportional to 404,407.92, 558,084.84 and 223,122

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Solution

The fourth proportional to 404,407.92, 558,084.84 and 223,122 is: 307,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,407.92 : 558,084.84 = 223,122 : x
  2. Step 2: Convert to fraction form
    404,407.92/558,084.84 = 223,122/x
  3. Step 3: Cross multiply
    404,407.92x = 558,084.84 × 223,122
  4. Step 4: Simplify right side
    404,407.92x = 124,521,005,670.48
  5. Step 5: Solve for x
    x = 124,521,005,670.48/404,407.92
  6. Step 6: Final answer
    x = 307,909.41

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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.