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Finding the Fourth Proportional to 419,866.04, 579,393.24 and 238,552.80

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Solution

The fourth proportional to 419,866.04, 579,393.24 and 238,552.80 is: 329,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,866.04 : 579,393.24 = 238,552.80 : x
  2. Step 2: Convert to fraction form
    419,866.04/579,393.24 = 238,552.80/x
  3. Step 3: Cross multiply
    419,866.04x = 579,393.24 × 238,552.80
  4. Step 4: Simplify right side
    419,866.04x = 138,215,879,703.07
  5. Step 5: Solve for x
    x = 138,215,879,703.07/419,866.04
  6. Step 6: Final answer
    x = 329,190.42

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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.