Home / 259,929.72-389,007.45-217,857.33

Finding the Fourth Proportional to 259,929.72, 389,007.45 and 217,857.33

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Solution

The fourth proportional to 259,929.72, 389,007.45 and 217,857.33 is: 326,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,929.72 : 389,007.45 = 217,857.33 : x
  2. Step 2: Convert to fraction form
    259,929.72/389,007.45 = 217,857.33/x
  3. Step 3: Cross multiply
    259,929.72x = 389,007.45 × 217,857.33
  4. Step 4: Simplify right side
    259,929.72x = 84,748,124,407.11
  5. Step 5: Solve for x
    x = 84,748,124,407.11/259,929.72
  6. Step 6: Final answer
    x = 326,042.46

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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.