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Finding the Fourth Proportional to 286,977, 395,921.30 and 179,506.20

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Solution

The fourth proportional to 286,977, 395,921.30 and 179,506.20 is: 247,651.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,977 : 395,921.30 = 179,506.20 : x
  2. Step 2: Convert to fraction form
    286,977/395,921.30 = 179,506.20/x
  3. Step 3: Cross multiply
    286,977x = 395,921.30 × 179,506.20
  4. Step 4: Simplify right side
    286,977x = 71,070,328,062.06
  5. Step 5: Solve for x
    x = 71,070,328,062.06/286,977
  6. Step 6: Final answer
    x = 247,651.65

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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.