Home / 210,859.48-290,993.07-115,366.22

Finding the Fourth Proportional to 210,859.48, 290,993.07 and 115,366.22

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Solution

The fourth proportional to 210,859.48, 290,993.07 and 115,366.22 is: 159,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,859.48 : 290,993.07 = 115,366.22 : x
  2. Step 2: Convert to fraction form
    210,859.48/290,993.07 = 115,366.22/x
  3. Step 3: Cross multiply
    210,859.48x = 290,993.07 × 115,366.22
  4. Step 4: Simplify right side
    210,859.48x = 33,570,770,532.10
  5. Step 5: Solve for x
    x = 33,570,770,532.10/210,859.48
  6. Step 6: Final answer
    x = 159,209.21

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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.