Home / 329,979.38-455,377.01-179,076.38

Finding the Fourth Proportional to 329,979.38, 455,377.01 and 179,076.38

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Solution

The fourth proportional to 329,979.38, 455,377.01 and 179,076.38 is: 247,128.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,979.38 : 455,377.01 = 179,076.38 : x
  2. Step 2: Convert to fraction form
    329,979.38/455,377.01 = 179,076.38/x
  3. Step 3: Cross multiply
    329,979.38x = 455,377.01 × 179,076.38
  4. Step 4: Simplify right side
    329,979.38x = 81,547,263,313.76
  5. Step 5: Solve for x
    x = 81,547,263,313.76/329,979.38
  6. Step 6: Final answer
    x = 247,128.36

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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.