Home / 210,976.35-291,136.10-115,464.57

Finding the Fourth Proportional to 210,976.35, 291,136.10 and 115,464.57

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Solution

The fourth proportional to 210,976.35, 291,136.10 and 115,464.57 is: 159,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,976.35 : 291,136.10 = 115,464.57 : x
  2. Step 2: Convert to fraction form
    210,976.35/291,136.10 = 115,464.57/x
  3. Step 3: Cross multiply
    210,976.35x = 291,136.10 × 115,464.57
  4. Step 4: Simplify right side
    210,976.35x = 33,615,904,020.65
  5. Step 5: Solve for x
    x = 33,615,904,020.65/210,976.35
  6. Step 6: Final answer
    x = 159,334.94

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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.