Home / 215,275.78-322,913.94-102,929.59

Finding the Fourth Proportional to 215,275.78, 322,913.94 and 102,929.59

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Solution

The fourth proportional to 215,275.78, 322,913.94 and 102,929.59 is: 154,394.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,275.78 : 322,913.94 = 102,929.59 : x
  2. Step 2: Convert to fraction form
    215,275.78/322,913.94 = 102,929.59/x
  3. Step 3: Cross multiply
    215,275.78x = 322,913.94 × 102,929.59
  4. Step 4: Simplify right side
    215,275.78x = 33,237,399,449.48
  5. Step 5: Solve for x
    x = 33,237,399,449.48/215,275.78
  6. Step 6: Final answer
    x = 154,394.51

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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.