Home / 343,717.20-515,721.60-166,132.80

Finding the Fourth Proportional to 343,717.20, 515,721.60 and 166,132.80

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Solution

The fourth proportional to 343,717.20, 515,721.60 and 166,132.80 is: 249,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,717.20 : 515,721.60 = 166,132.80 : x
  2. Step 2: Convert to fraction form
    343,717.20/515,721.60 = 166,132.80/x
  3. Step 3: Cross multiply
    343,717.20x = 515,721.60 × 166,132.80
  4. Step 4: Simplify right side
    343,717.20x = 85,678,273,428.48
  5. Step 5: Solve for x
    x = 85,678,273,428.48/343,717.20
  6. Step 6: Final answer
    x = 249,269.67

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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.