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Finding the Fourth Proportional to 210,327.72, 290,277.72 and 119,705.73

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Solution

The fourth proportional to 210,327.72, 290,277.72 and 119,705.73 is: 165,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,327.72 : 290,277.72 = 119,705.73 : x
  2. Step 2: Convert to fraction form
    210,327.72/290,277.72 = 119,705.73/x
  3. Step 3: Cross multiply
    210,327.72x = 290,277.72 × 119,705.73
  4. Step 4: Simplify right side
    210,327.72x = 34,747,906,375.34
  5. Step 5: Solve for x
    x = 34,747,906,375.34/210,327.72
  6. Step 6: Final answer
    x = 165,208.40

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1.5x scale

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.