Home / 251,981.82-347,734.89-138,804.57

Finding the Fourth Proportional to 251,981.82, 347,734.89 and 138,804.57

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Solution

The fourth proportional to 251,981.82, 347,734.89 and 138,804.57 is: 191,550.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,981.82 : 347,734.89 = 138,804.57 : x
  2. Step 2: Convert to fraction form
    251,981.82/347,734.89 = 138,804.57/x
  3. Step 3: Cross multiply
    251,981.82x = 347,734.89 × 138,804.57
  4. Step 4: Simplify right side
    251,981.82x = 48,267,191,880.45
  5. Step 5: Solve for x
    x = 48,267,191,880.45/251,981.82
  6. Step 6: Final answer
    x = 191,550.29

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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.