Home / 343,618.11-515,443.37-283,535.15

Finding the Fourth Proportional to 343,618.11, 515,443.37 and 283,535.15

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Solution

The fourth proportional to 343,618.11, 515,443.37 and 283,535.15 is: 425,316.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,618.11 : 515,443.37 = 283,535.15 : x
  2. Step 2: Convert to fraction form
    343,618.11/515,443.37 = 283,535.15/x
  3. Step 3: Cross multiply
    343,618.11x = 515,443.37 × 283,535.15
  4. Step 4: Simplify right side
    343,618.11x = 146,146,309,234.56
  5. Step 5: Solve for x
    x = 146,146,309,234.56/343,618.11
  6. Step 6: Final answer
    x = 425,316.08

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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.