Home / 668,257.23-1,002,335.43-212,830.06

Finding the Fourth Proportional to 668,257.23, 1,002,335.43 and 212,830.06

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Solution

The fourth proportional to 668,257.23, 1,002,335.43 and 212,830.06 is: 319,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,257.23 : 1,002,335.43 = 212,830.06 : x
  2. Step 2: Convert to fraction form
    668,257.23/1,002,335.43 = 212,830.06/x
  3. Step 3: Cross multiply
    668,257.23x = 1,002,335.43 × 212,830.06
  4. Step 4: Simplify right side
    668,257.23x = 213,327,109,707.03
  5. Step 5: Solve for x
    x = 213,327,109,707.03/668,257.23
  6. Step 6: Final answer
    x = 319,229.03

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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.