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Finding the Fourth Proportional to 210,042.15, 289,846.62 and 119,385.51

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Solution

The fourth proportional to 210,042.15, 289,846.62 and 119,385.51 is: 164,745.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,042.15 : 289,846.62 = 119,385.51 : x
  2. Step 2: Convert to fraction form
    210,042.15/289,846.62 = 119,385.51/x
  3. Step 3: Cross multiply
    210,042.15x = 289,846.62 × 119,385.51
  4. Step 4: Simplify right side
    210,042.15x = 34,603,486,550.48
  5. Step 5: Solve for x
    x = 34,603,486,550.48/210,042.15
  6. Step 6: Final answer
    x = 164,745.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.