Home / 290,725.11-401,233.92-161,676.45

Finding the Fourth Proportional to 290,725.11, 401,233.92 and 161,676.45

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Solution

The fourth proportional to 290,725.11, 401,233.92 and 161,676.45 is: 223,132.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,725.11 : 401,233.92 = 161,676.45 : x
  2. Step 2: Convert to fraction form
    290,725.11/401,233.92 = 161,676.45/x
  3. Step 3: Cross multiply
    290,725.11x = 401,233.92 × 161,676.45
  4. Step 4: Simplify right side
    290,725.11x = 64,870,075,805.18
  5. Step 5: Solve for x
    x = 64,870,075,805.18/290,725.11
  6. Step 6: Final answer
    x = 223,132.00

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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.