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Finding the Fourth Proportional to 225,813.54, 311,636.48 and 130,326.39

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Solution

The fourth proportional to 225,813.54, 311,636.48 and 130,326.39 is: 179,858.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,813.54 : 311,636.48 = 130,326.39 : x
  2. Step 2: Convert to fraction form
    225,813.54/311,636.48 = 130,326.39/x
  3. Step 3: Cross multiply
    225,813.54x = 311,636.48 × 130,326.39
  4. Step 4: Simplify right side
    225,813.54x = 40,614,456,779.08
  5. Step 5: Solve for x
    x = 40,614,456,779.08/225,813.54
  6. Step 6: Final answer
    x = 179,858.38

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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.