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Finding the Fourth Proportional to 210,381.96, 290,315.25 and 119,759.97

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Solution

The fourth proportional to 210,381.96, 290,315.25 and 119,759.97 is: 165,262.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,381.96 : 290,315.25 = 119,759.97 : x
  2. Step 2: Convert to fraction form
    210,381.96/290,315.25 = 119,759.97/x
  3. Step 3: Cross multiply
    210,381.96x = 290,315.25 × 119,759.97
  4. Step 4: Simplify right side
    210,381.96x = 34,768,145,630.54
  5. Step 5: Solve for x
    x = 34,768,145,630.54/210,381.96
  6. Step 6: Final answer
    x = 165,262.01

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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.