Home / 343,727.28-515,618.60-130,597.31

Finding the Fourth Proportional to 343,727.28, 515,618.60 and 130,597.31

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Solution

The fourth proportional to 343,727.28, 515,618.60 and 130,597.31 is: 195,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,727.28 : 515,618.60 = 130,597.31 : x
  2. Step 2: Convert to fraction form
    343,727.28/515,618.60 = 130,597.31/x
  3. Step 3: Cross multiply
    343,727.28x = 515,618.60 × 130,597.31
  4. Step 4: Simplify right side
    343,727.28x = 67,338,402,782.03
  5. Step 5: Solve for x
    x = 67,338,402,782.03/343,727.28
  6. Step 6: Final answer
    x = 195,906.48

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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.