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Finding the Fourth Proportional to 361,745.74, 542,312.42 and 136,982.28

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Solution

The fourth proportional to 361,745.74, 542,312.42 and 136,982.28 is: 205,357.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,745.74 : 542,312.42 = 136,982.28 : x
  2. Step 2: Convert to fraction form
    361,745.74/542,312.42 = 136,982.28/x
  3. Step 3: Cross multiply
    361,745.74x = 542,312.42 × 136,982.28
  4. Step 4: Simplify right side
    361,745.74x = 74,287,192,106.37
  5. Step 5: Solve for x
    x = 74,287,192,106.37/361,745.74
  6. Step 6: Final answer
    x = 205,357.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.