Home / 290,856.81-401,388.29-170,003.19

Finding the Fourth Proportional to 290,856.81, 401,388.29 and 170,003.19

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Solution

The fourth proportional to 290,856.81, 401,388.29 and 170,003.19 is: 234,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,856.81 : 401,388.29 = 170,003.19 : x
  2. Step 2: Convert to fraction form
    290,856.81/401,388.29 = 170,003.19/x
  3. Step 3: Cross multiply
    290,856.81x = 401,388.29 × 170,003.19
  4. Step 4: Simplify right side
    290,856.81x = 68,237,289,728.65
  5. Step 5: Solve for x
    x = 68,237,289,728.65/290,856.81
  6. Step 6: Final answer
    x = 234,607.85

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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.