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Finding the Fourth Proportional to 197,175.30, 295,676.55 and 78,807.30

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Solution

The fourth proportional to 197,175.30, 295,676.55 and 78,807.30 is: 118,176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,175.30 : 295,676.55 = 78,807.30 : x
  2. Step 2: Convert to fraction form
    197,175.30/295,676.55 = 78,807.30/x
  3. Step 3: Cross multiply
    197,175.30x = 295,676.55 × 78,807.30
  4. Step 4: Simplify right side
    197,175.30x = 23,301,470,578.82
  5. Step 5: Solve for x
    x = 23,301,470,578.82/197,175.30
  6. Step 6: Final answer
    x = 118,176.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.