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Finding the Fourth Proportional to 288,747.33, 398,473.97 and 159,679.13

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Solution

The fourth proportional to 288,747.33, 398,473.97 and 159,679.13 is: 220,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,747.33 : 398,473.97 = 159,679.13 : x
  2. Step 2: Convert to fraction form
    288,747.33/398,473.97 = 159,679.13/x
  3. Step 3: Cross multiply
    288,747.33x = 398,473.97 × 159,679.13
  4. Step 4: Simplify right side
    288,747.33x = 63,627,978,662.61
  5. Step 5: Solve for x
    x = 63,627,978,662.61/288,747.33
  6. Step 6: Final answer
    x = 220,358.67

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1.5x scale

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.