Home / 343,890.30-515,087.55-210,366.66

Finding the Fourth Proportional to 343,890.30, 515,087.55 and 210,366.66

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Solution

The fourth proportional to 343,890.30, 515,087.55 and 210,366.66 is: 315,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,890.30 : 515,087.55 = 210,366.66 : x
  2. Step 2: Convert to fraction form
    343,890.30/515,087.55 = 210,366.66/x
  3. Step 3: Cross multiply
    343,890.30x = 515,087.55 × 210,366.66
  4. Step 4: Simplify right side
    343,890.30x = 108,357,247,501.08
  5. Step 5: Solve for x
    x = 108,357,247,501.08/343,890.30
  6. Step 6: Final answer
    x = 315,092.48

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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.