Home / 210,528.52-290,525.92-115,033.20

Finding the Fourth Proportional to 210,528.52, 290,525.92 and 115,033.20

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Solution

The fourth proportional to 210,528.52, 290,525.92 and 115,033.20 is: 158,743.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,528.52 : 290,525.92 = 115,033.20 : x
  2. Step 2: Convert to fraction form
    210,528.52/290,525.92 = 115,033.20/x
  3. Step 3: Cross multiply
    210,528.52x = 290,525.92 × 115,033.20
  4. Step 4: Simplify right side
    210,528.52x = 33,420,126,260.54
  5. Step 5: Solve for x
    x = 33,420,126,260.54/210,528.52
  6. Step 6: Final answer
    x = 158,743.94

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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.