Home / 290,943.18-401,515.20-161,882.37

Finding the Fourth Proportional to 290,943.18, 401,515.20 and 161,882.37

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Solution

The fourth proportional to 290,943.18, 401,515.20 and 161,882.37 is: 223,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,943.18 : 401,515.20 = 161,882.37 : x
  2. Step 2: Convert to fraction form
    290,943.18/401,515.20 = 161,882.37/x
  3. Step 3: Cross multiply
    290,943.18x = 401,515.20 × 161,882.37
  4. Step 4: Simplify right side
    290,943.18x = 64,998,232,167.02
  5. Step 5: Solve for x
    x = 64,998,232,167.02/290,943.18
  6. Step 6: Final answer
    x = 223,405.24

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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.