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Finding the Fourth Proportional to 210,306.44, 290,239.44 and 119,666.22

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Solution

The fourth proportional to 210,306.44, 290,239.44 and 119,666.22 is: 165,148.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,306.44 : 290,239.44 = 119,666.22 : x
  2. Step 2: Convert to fraction form
    210,306.44/290,239.44 = 119,666.22/x
  3. Step 3: Cross multiply
    210,306.44x = 290,239.44 × 119,666.22
  4. Step 4: Simplify right side
    210,306.44x = 34,731,856,679.72
  5. Step 5: Solve for x
    x = 34,731,856,679.72/210,306.44
  6. Step 6: Final answer
    x = 165,148.81

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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.