Home / 343,395.20-513,634.80-308,111.60

Finding the Fourth Proportional to 343,395.20, 513,634.80 and 308,111.60

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Solution

The fourth proportional to 343,395.20, 513,634.80 and 308,111.60 is: 460,859.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,395.20 : 513,634.80 = 308,111.60 : x
  2. Step 2: Convert to fraction form
    343,395.20/513,634.80 = 308,111.60/x
  3. Step 3: Cross multiply
    343,395.20x = 513,634.80 × 308,111.60
  4. Step 4: Simplify right side
    343,395.20x = 158,256,840,043.68
  5. Step 5: Solve for x
    x = 158,256,840,043.68/343,395.20
  6. Step 6: Final answer
    x = 460,859.21

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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.