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Finding the Fourth Proportional to 171,680.10, 257,516.10 and 47,021.10

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Solution

The fourth proportional to 171,680.10, 257,516.10 and 47,021.10 is: 70,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,680.10 : 257,516.10 = 47,021.10 : x
  2. Step 2: Convert to fraction form
    171,680.10/257,516.10 = 47,021.10/x
  3. Step 3: Cross multiply
    171,680.10x = 257,516.10 × 47,021.10
  4. Step 4: Simplify right side
    171,680.10x = 12,108,690,289.71
  5. Step 5: Solve for x
    x = 12,108,690,289.71/171,680.10
  6. Step 6: Final answer
    x = 70,530.54

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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.