Home / 210,589.96-290,613.68-115,097.36

Finding the Fourth Proportional to 210,589.96, 290,613.68 and 115,097.36

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Solution

The fourth proportional to 210,589.96, 290,613.68 and 115,097.36 is: 158,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,589.96 : 290,613.68 = 115,097.36 : x
  2. Step 2: Convert to fraction form
    210,589.96/290,613.68 = 115,097.36/x
  3. Step 3: Cross multiply
    210,589.96x = 290,613.68 × 115,097.36
  4. Step 4: Simplify right side
    210,589.96x = 33,448,867,347.88
  5. Step 5: Solve for x
    x = 33,448,867,347.88/210,589.96
  6. Step 6: Final answer
    x = 158,834.10

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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.