Home / 210,829.64-290,947.19-115,334.28

Finding the Fourth Proportional to 210,829.64, 290,947.19 and 115,334.28

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Solution

The fourth proportional to 210,829.64, 290,947.19 and 115,334.28 is: 159,162.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,829.64 : 290,947.19 = 115,334.28 : x
  2. Step 2: Convert to fraction form
    210,829.64/290,947.19 = 115,334.28/x
  3. Step 3: Cross multiply
    210,829.64x = 290,947.19 × 115,334.28
  4. Step 4: Simplify right side
    210,829.64x = 33,556,184,100.00
  5. Step 5: Solve for x
    x = 33,556,184,100.00/210,829.64
  6. Step 6: Final answer
    x = 159,162.56

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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.