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Finding the Fourth Proportional to 228,305.34, 342,516.42 and 133,615.26

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Solution

The fourth proportional to 228,305.34, 342,516.42 and 133,615.26 is: 200,457.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,305.34 : 342,516.42 = 133,615.26 : x
  2. Step 2: Convert to fraction form
    228,305.34/342,516.42 = 133,615.26/x
  3. Step 3: Cross multiply
    228,305.34x = 342,516.42 × 133,615.26
  4. Step 4: Simplify right side
    228,305.34x = 45,765,420,512.57
  5. Step 5: Solve for x
    x = 45,765,420,512.57/228,305.34
  6. Step 6: Final answer
    x = 200,457.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.