Home / 343,399.10-515,206.65-165,911.90

Finding the Fourth Proportional to 343,399.10, 515,206.65 and 165,911.90

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Solution

The fourth proportional to 343,399.10, 515,206.65 and 165,911.90 is: 248,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,399.10 : 515,206.65 = 165,911.90 : x
  2. Step 2: Convert to fraction form
    343,399.10/515,206.65 = 165,911.90/x
  3. Step 3: Cross multiply
    343,399.10x = 515,206.65 × 165,911.90
  4. Step 4: Simplify right side
    343,399.10x = 85,478,914,194.14
  5. Step 5: Solve for x
    x = 85,478,914,194.14/343,399.10
  6. Step 6: Final answer
    x = 248,920.03

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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.