Home / 371,932.30-513,398.22-221,027.50

Finding the Fourth Proportional to 371,932.30, 513,398.22 and 221,027.50

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Solution

The fourth proportional to 371,932.30, 513,398.22 and 221,027.50 is: 305,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,932.30 : 513,398.22 = 221,027.50 : x
  2. Step 2: Convert to fraction form
    371,932.30/513,398.22 = 221,027.50/x
  3. Step 3: Cross multiply
    371,932.30x = 513,398.22 × 221,027.50
  4. Step 4: Simplify right side
    371,932.30x = 113,475,125,071.05
  5. Step 5: Solve for x
    x = 113,475,125,071.05/371,932.30
  6. Step 6: Final answer
    x = 305,096.18

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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.