Home / 290,764.14-401,254.76-161,699.81

Finding the Fourth Proportional to 290,764.14, 401,254.76 and 161,699.81

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Solution

The fourth proportional to 290,764.14, 401,254.76 and 161,699.81 is: 223,145.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,764.14 : 401,254.76 = 161,699.81 : x
  2. Step 2: Convert to fraction form
    290,764.14/401,254.76 = 161,699.81/x
  3. Step 3: Cross multiply
    290,764.14x = 401,254.76 × 161,699.81
  4. Step 4: Simplify right side
    290,764.14x = 64,882,815,638.82
  5. Step 5: Solve for x
    x = 64,882,815,638.82/290,764.14
  6. Step 6: Final answer
    x = 223,145.87

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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.