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Finding the Fourth Proportional to 210,586.80, 290,609.82 and 119,951.22

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Solution

The fourth proportional to 210,586.80, 290,609.82 and 119,951.22 is: 165,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,586.80 : 290,609.82 = 119,951.22 : x
  2. Step 2: Convert to fraction form
    210,586.80/290,609.82 = 119,951.22/x
  3. Step 3: Cross multiply
    210,586.80x = 290,609.82 × 119,951.22
  4. Step 4: Simplify right side
    210,586.80x = 34,859,002,452.98
  5. Step 5: Solve for x
    x = 34,859,002,452.98/210,586.80
  6. Step 6: Final answer
    x = 165,532.70

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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.