Home / 210,277.36-290,286.84-129,749.25

Finding the Fourth Proportional to 210,277.36, 290,286.84 and 129,749.25

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Solution

The fourth proportional to 210,277.36, 290,286.84 and 129,749.25 is: 179,118.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,277.36 : 290,286.84 = 129,749.25 : x
  2. Step 2: Convert to fraction form
    210,277.36/290,286.84 = 129,749.25/x
  3. Step 3: Cross multiply
    210,277.36x = 290,286.84 × 129,749.25
  4. Step 4: Simplify right side
    210,277.36x = 37,664,499,126.12
  5. Step 5: Solve for x
    x = 37,664,499,126.12/210,277.36
  6. Step 6: Final answer
    x = 179,118.19

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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.