Home / 343,392.24-515,018.21-130,086.62

Finding the Fourth Proportional to 343,392.24, 515,018.21 and 130,086.62

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Solution

The fourth proportional to 343,392.24, 515,018.21 and 130,086.62 is: 195,103.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,392.24 : 515,018.21 = 130,086.62 : x
  2. Step 2: Convert to fraction form
    343,392.24/515,018.21 = 130,086.62/x
  3. Step 3: Cross multiply
    343,392.24x = 515,018.21 × 130,086.62
  4. Step 4: Simplify right side
    343,392.24x = 66,996,976,883.14
  5. Step 5: Solve for x
    x = 66,996,976,883.14/343,392.24
  6. Step 6: Final answer
    x = 195,103.35

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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.