Home / 290,673.20-401,133.68-159,856.02

Finding the Fourth Proportional to 290,673.20, 401,133.68 and 159,856.02

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Solution

The fourth proportional to 290,673.20, 401,133.68 and 159,856.02 is: 220,603.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,673.20 : 401,133.68 = 159,856.02 : x
  2. Step 2: Convert to fraction form
    290,673.20/401,133.68 = 159,856.02/x
  3. Step 3: Cross multiply
    290,673.20x = 401,133.68 × 159,856.02
  4. Step 4: Simplify right side
    290,673.20x = 64,123,632,923.34
  5. Step 5: Solve for x
    x = 64,123,632,923.34/290,673.20
  6. Step 6: Final answer
    x = 220,603.87

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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.