Home / 255,256,478.15-352,416,850.11-208,325,661.75

Finding the Fourth Proportional to 255,256,478.15, 352,416,850.11 and 208,325,661.75

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Solution

The fourth proportional to 255,256,478.15, 352,416,850.11 and 208,325,661.75 is: 287,622,371.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,256,478.15 : 352,416,850.11 = 208,325,661.75 : x
  2. Step 2: Convert to fraction form
    255,256,478.15/352,416,850.11 = 208,325,661.75/x
  3. Step 3: Cross multiply
    255,256,478.15x = 352,416,850.11 × 208,325,661.75
  4. Step 4: Simplify right side
    255,256,478.15x = 73,417,473,511,016,320
  5. Step 5: Solve for x
    x = 73,417,473,511,016,320/255,256,478.15
  6. Step 6: Final answer
    x = 287,622,371.21

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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.