Home / 225,783.06-311,590.14-129,002.84

Finding the Fourth Proportional to 225,783.06, 311,590.14 and 129,002.84

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Solution

The fourth proportional to 225,783.06, 311,590.14 and 129,002.84 is: 178,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,783.06 : 311,590.14 = 129,002.84 : x
  2. Step 2: Convert to fraction form
    225,783.06/311,590.14 = 129,002.84/x
  3. Step 3: Cross multiply
    225,783.06x = 311,590.14 × 129,002.84
  4. Step 4: Simplify right side
    225,783.06x = 40,196,012,976.00
  5. Step 5: Solve for x
    x = 40,196,012,976.00/225,783.06
  6. Step 6: Final answer
    x = 178,029.36

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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.