Home / 343,442.29-515,034.03-143,776.48

Finding the Fourth Proportional to 343,442.29, 515,034.03 and 143,776.48

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Solution

The fourth proportional to 343,442.29, 515,034.03 and 143,776.48 is: 215,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,442.29 : 515,034.03 = 143,776.48 : x
  2. Step 2: Convert to fraction form
    343,442.29/515,034.03 = 143,776.48/x
  3. Step 3: Cross multiply
    343,442.29x = 515,034.03 × 143,776.48
  4. Step 4: Simplify right side
    343,442.29x = 74,049,779,194.73
  5. Step 5: Solve for x
    x = 74,049,779,194.73/343,442.29
  6. Step 6: Final answer
    x = 215,610.54

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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.