Home / 210,499.62-290,489.13-115,006.29

Finding the Fourth Proportional to 210,499.62, 290,489.13 and 115,006.29

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Solution

The fourth proportional to 210,499.62, 290,489.13 and 115,006.29 is: 158,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,499.62 : 290,489.13 = 115,006.29 : x
  2. Step 2: Convert to fraction form
    210,499.62/290,489.13 = 115,006.29/x
  3. Step 3: Cross multiply
    210,499.62x = 290,489.13 × 115,006.29
  4. Step 4: Simplify right side
    210,499.62x = 33,408,077,126.63
  5. Step 5: Solve for x
    x = 33,408,077,126.63/210,499.62
  6. Step 6: Final answer
    x = 158,708.49

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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.