Home / 290,936.79-401,680.32-187,617.18

Finding the Fourth Proportional to 290,936.79, 401,680.32 and 187,617.18

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Solution

The fourth proportional to 290,936.79, 401,680.32 and 187,617.18 is: 259,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,936.79 : 401,680.32 = 187,617.18 : x
  2. Step 2: Convert to fraction form
    290,936.79/401,680.32 = 187,617.18/x
  3. Step 3: Cross multiply
    290,936.79x = 401,680.32 × 187,617.18
  4. Step 4: Simplify right side
    290,936.79x = 75,362,128,899.90
  5. Step 5: Solve for x
    x = 75,362,128,899.90/290,936.79
  6. Step 6: Final answer
    x = 259,032.65

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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.