Home / 381,721.25-526,840.15-220,669.67

Finding the Fourth Proportional to 381,721.25, 526,840.15 and 220,669.67

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Solution

The fourth proportional to 381,721.25, 526,840.15 and 220,669.67 is: 304,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,721.25 : 526,840.15 = 220,669.67 : x
  2. Step 2: Convert to fraction form
    381,721.25/526,840.15 = 220,669.67/x
  3. Step 3: Cross multiply
    381,721.25x = 526,840.15 × 220,669.67
  4. Step 4: Simplify right side
    381,721.25x = 116,257,642,043.25
  5. Step 5: Solve for x
    x = 116,257,642,043.25/381,721.25
  6. Step 6: Final answer
    x = 304,561.62

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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.