Home / 210,717.83-290,786.18-115,224.45

Finding the Fourth Proportional to 210,717.83, 290,786.18 and 115,224.45

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Solution

The fourth proportional to 210,717.83, 290,786.18 and 115,224.45 is: 159,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,717.83 : 290,786.18 = 115,224.45 : x
  2. Step 2: Convert to fraction form
    210,717.83/290,786.18 = 115,224.45/x
  3. Step 3: Cross multiply
    210,717.83x = 290,786.18 × 115,224.45
  4. Step 4: Simplify right side
    210,717.83x = 33,505,677,081.98
  5. Step 5: Solve for x
    x = 33,505,677,081.98/210,717.83
  6. Step 6: Final answer
    x = 159,007.32

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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.