Home / 381,871.16-526,995.44-212,121.08

Finding the Fourth Proportional to 381,871.16, 526,995.44 and 212,121.08

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Solution

The fourth proportional to 381,871.16, 526,995.44 and 212,121.08 is: 292,734.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,871.16 : 526,995.44 = 212,121.08 : x
  2. Step 2: Convert to fraction form
    381,871.16/526,995.44 = 212,121.08/x
  3. Step 3: Cross multiply
    381,871.16x = 526,995.44 × 212,121.08
  4. Step 4: Simplify right side
    381,871.16x = 111,786,841,887.88
  5. Step 5: Solve for x
    x = 111,786,841,887.88/381,871.16
  6. Step 6: Final answer
    x = 292,734.44

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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.