Home / 210,834.90-290,954.84-115,343.19

Finding the Fourth Proportional to 210,834.90, 290,954.84 and 115,343.19

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Solution

The fourth proportional to 210,834.90, 290,954.84 and 115,343.19 is: 159,175.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,834.90 : 290,954.84 = 115,343.19 : x
  2. Step 2: Convert to fraction form
    210,834.90/290,954.84 = 115,343.19/x
  3. Step 3: Cross multiply
    210,834.90x = 290,954.84 × 115,343.19
  4. Step 4: Simplify right side
    210,834.90x = 33,559,658,814.82
  5. Step 5: Solve for x
    x = 33,559,658,814.82/210,834.90
  6. Step 6: Final answer
    x = 159,175.06

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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.