Home / 210,624.21-290,661.39-115,131.29

Finding the Fourth Proportional to 210,624.21, 290,661.39 and 115,131.29

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Solution

The fourth proportional to 210,624.21, 290,661.39 and 115,131.29 is: 158,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,624.21 : 290,661.39 = 115,131.29 : x
  2. Step 2: Convert to fraction form
    210,624.21/290,661.39 = 115,131.29/x
  3. Step 3: Cross multiply
    210,624.21x = 290,661.39 × 115,131.29
  4. Step 4: Simplify right side
    210,624.21x = 33,464,219,330.59
  5. Step 5: Solve for x
    x = 33,464,219,330.59/210,624.21
  6. Step 6: Final answer
    x = 158,881.16

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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.