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Finding the Fourth Proportional to 404,702.39, 558,490.13 and 223,414.57

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Solution

The fourth proportional to 404,702.39, 558,490.13 and 223,414.57 is: 308,312.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,702.39 : 558,490.13 = 223,414.57 : x
  2. Step 2: Convert to fraction form
    404,702.39/558,490.13 = 223,414.57/x
  3. Step 3: Cross multiply
    404,702.39x = 558,490.13 × 223,414.57
  4. Step 4: Simplify right side
    404,702.39x = 124,774,832,662.04
  5. Step 5: Solve for x
    x = 124,774,832,662.04/404,702.39
  6. Step 6: Final answer
    x = 308,312.56

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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.