Home / 274,641.12-379,015.57-153,781.32

Finding the Fourth Proportional to 274,641.12, 379,015.57 and 153,781.32

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Solution

The fourth proportional to 274,641.12, 379,015.57 and 153,781.32 is: 212,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,641.12 : 379,015.57 = 153,781.32 : x
  2. Step 2: Convert to fraction form
    274,641.12/379,015.57 = 153,781.32/x
  3. Step 3: Cross multiply
    274,641.12x = 379,015.57 × 153,781.32
  4. Step 4: Simplify right side
    274,641.12x = 58,285,516,268.69
  5. Step 5: Solve for x
    x = 58,285,516,268.69/274,641.12
  6. Step 6: Final answer
    x = 212,224.29

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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.