Home / 210,624.19-290,661.39-115,131.26

Finding the Fourth Proportional to 210,624.19, 290,661.39 and 115,131.26

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Solution

The fourth proportional to 210,624.19, 290,661.39 and 115,131.26 is: 158,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,624.19 : 290,661.39 = 115,131.26 : x
  2. Step 2: Convert to fraction form
    210,624.19/290,661.39 = 115,131.26/x
  3. Step 3: Cross multiply
    210,624.19x = 290,661.39 × 115,131.26
  4. Step 4: Simplify right side
    210,624.19x = 33,464,212,790.70
  5. Step 5: Solve for x
    x = 33,464,212,790.70/210,624.19
  6. Step 6: Final answer
    x = 158,881.15

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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.