Home / 210,835.36-290,951.76-115,340.32

Finding the Fourth Proportional to 210,835.36, 290,951.76 and 115,340.32

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Solution

The fourth proportional to 210,835.36, 290,951.76 and 115,340.32 is: 159,169.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,835.36 : 290,951.76 = 115,340.32 : x
  2. Step 2: Convert to fraction form
    210,835.36/290,951.76 = 115,340.32/x
  3. Step 3: Cross multiply
    210,835.36x = 290,951.76 × 115,340.32
  4. Step 4: Simplify right side
    210,835.36x = 33,558,469,102.96
  5. Step 5: Solve for x
    x = 33,558,469,102.96/210,835.36
  6. Step 6: Final answer
    x = 159,169.07

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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.