Home / 210,610.82-290,643.07-115,117.50

Finding the Fourth Proportional to 210,610.82, 290,643.07 and 115,117.50

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Solution

The fourth proportional to 210,610.82, 290,643.07 and 115,117.50 is: 158,862.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,610.82 : 290,643.07 = 115,117.50 : x
  2. Step 2: Convert to fraction form
    210,610.82/290,643.07 = 115,117.50/x
  3. Step 3: Cross multiply
    210,610.82x = 290,643.07 × 115,117.50
  4. Step 4: Simplify right side
    210,610.82x = 33,458,104,628.69
  5. Step 5: Solve for x
    x = 33,458,104,628.69/210,610.82
  6. Step 6: Final answer
    x = 158,862.23

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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.