Home / 322,664.20-445,731.93-258,559.28

Finding the Fourth Proportional to 322,664.20, 445,731.93 and 258,559.28

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Solution

The fourth proportional to 322,664.20, 445,731.93 and 258,559.28 is: 357,176.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,664.20 : 445,731.93 = 258,559.28 : x
  2. Step 2: Convert to fraction form
    322,664.20/445,731.93 = 258,559.28/x
  3. Step 3: Cross multiply
    322,664.20x = 445,731.93 × 258,559.28
  4. Step 4: Simplify right side
    322,664.20x = 115,248,126,418.06
  5. Step 5: Solve for x
    x = 115,248,126,418.06/322,664.20
  6. Step 6: Final answer
    x = 357,176.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.