Home / 290,945.36-401,756.90-214,596.79

Finding the Fourth Proportional to 290,945.36, 401,756.90 and 214,596.79

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Solution

The fourth proportional to 290,945.36, 401,756.90 and 214,596.79 is: 296,329.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,945.36 : 401,756.90 = 214,596.79 : x
  2. Step 2: Convert to fraction form
    290,945.36/401,756.90 = 214,596.79/x
  3. Step 3: Cross multiply
    290,945.36x = 401,756.90 × 214,596.79
  4. Step 4: Simplify right side
    290,945.36x = 86,215,739,022.97
  5. Step 5: Solve for x
    x = 86,215,739,022.97/290,945.36
  6. Step 6: Final answer
    x = 296,329.66

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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.