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Finding the Fourth Proportional to 217,543.80, 300,516.30 and 167,881.08

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Solution

The fourth proportional to 217,543.80, 300,516.30 and 167,881.08 is: 231,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,543.80 : 300,516.30 = 167,881.08 : x
  2. Step 2: Convert to fraction form
    217,543.80/300,516.30 = 167,881.08/x
  3. Step 3: Cross multiply
    217,543.80x = 300,516.30 × 167,881.08
  4. Step 4: Simplify right side
    217,543.80x = 50,451,001,001.60
  5. Step 5: Solve for x
    x = 50,451,001,001.60/217,543.80
  6. Step 6: Final answer
    x = 231,911.92

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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.