Home / 213,945.36-295,308.60-138,498.96

Finding the Fourth Proportional to 213,945.36, 295,308.60 and 138,498.96

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Solution

The fourth proportional to 213,945.36, 295,308.60 and 138,498.96 is: 191,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,945.36 : 295,308.60 = 138,498.96 : x
  2. Step 2: Convert to fraction form
    213,945.36/295,308.60 = 138,498.96/x
  3. Step 3: Cross multiply
    213,945.36x = 295,308.60 × 138,498.96
  4. Step 4: Simplify right side
    213,945.36x = 40,899,933,979.06
  5. Step 5: Solve for x
    x = 40,899,933,979.06/213,945.36
  6. Step 6: Final answer
    x = 191,170.00

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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.