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Finding the Fourth Proportional to 342,580.57, 513,905.17 and 117,911.27

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Solution

The fourth proportional to 342,580.57, 513,905.17 and 117,911.27 is: 176,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,580.57 : 513,905.17 = 117,911.27 : x
  2. Step 2: Convert to fraction form
    342,580.57/513,905.17 = 117,911.27/x
  3. Step 3: Cross multiply
    342,580.57x = 513,905.17 × 117,911.27
  4. Step 4: Simplify right side
    342,580.57x = 60,595,212,244.25
  5. Step 5: Solve for x
    x = 60,595,212,244.25/342,580.57
  6. Step 6: Final answer
    x = 176,878.72

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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.