Home / 343,904.79-515,946.38-130,676.39

Finding the Fourth Proportional to 343,904.79, 515,946.38 and 130,676.39

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Solution

The fourth proportional to 343,904.79, 515,946.38 and 130,676.39 is: 196,048.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,904.79 : 515,946.38 = 130,676.39 : x
  2. Step 2: Convert to fraction form
    343,904.79/515,946.38 = 130,676.39/x
  3. Step 3: Cross multiply
    343,904.79x = 515,946.38 × 130,676.39
  4. Step 4: Simplify right side
    343,904.79x = 67,422,011,008.45
  5. Step 5: Solve for x
    x = 67,422,011,008.45/343,904.79
  6. Step 6: Final answer
    x = 196,048.48

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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.