Home / 290,820.15-401,326.06-161,755.85

Finding the Fourth Proportional to 290,820.15, 401,326.06 and 161,755.85

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Solution

The fourth proportional to 290,820.15, 401,326.06 and 161,755.85 is: 223,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,820.15 : 401,326.06 = 161,755.85 : x
  2. Step 2: Convert to fraction form
    290,820.15/401,326.06 = 161,755.85/x
  3. Step 3: Cross multiply
    290,820.15x = 401,326.06 × 161,755.85
  4. Step 4: Simplify right side
    290,820.15x = 64,916,837,962.45
  5. Step 5: Solve for x
    x = 64,916,837,962.45/290,820.15
  6. Step 6: Final answer
    x = 223,219.88

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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.