Home / 211,803.75-292,289.97-115,007.73

Finding the Fourth Proportional to 211,803.75, 292,289.97 and 115,007.73

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Solution

The fourth proportional to 211,803.75, 292,289.97 and 115,007.73 is: 158,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,803.75 : 292,289.97 = 115,007.73 : x
  2. Step 2: Convert to fraction form
    211,803.75/292,289.97 = 115,007.73/x
  3. Step 3: Cross multiply
    211,803.75x = 292,289.97 × 115,007.73
  4. Step 4: Simplify right side
    211,803.75x = 33,615,605,951.47
  5. Step 5: Solve for x
    x = 33,615,605,951.47/211,803.75
  6. Step 6: Final answer
    x = 158,711.10

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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.