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Finding the Fourth Proportional to 214,781.56, 322,211.87 and 70,695.47

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Solution

The fourth proportional to 214,781.56, 322,211.87 and 70,695.47 is: 106,056.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,781.56 : 322,211.87 = 70,695.47 : x
  2. Step 2: Convert to fraction form
    214,781.56/322,211.87 = 70,695.47/x
  3. Step 3: Cross multiply
    214,781.56x = 322,211.87 × 70,695.47
  4. Step 4: Simplify right side
    214,781.56x = 22,778,918,295.12
  5. Step 5: Solve for x
    x = 22,778,918,295.12/214,781.56
  6. Step 6: Final answer
    x = 106,056.21

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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.