Home / 312,253.08-430,976.70-197,458.44

Finding the Fourth Proportional to 312,253.08, 430,976.70 and 197,458.44

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Solution

The fourth proportional to 312,253.08, 430,976.70 and 197,458.44 is: 272,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,253.08 : 430,976.70 = 197,458.44 : x
  2. Step 2: Convert to fraction form
    312,253.08/430,976.70 = 197,458.44/x
  3. Step 3: Cross multiply
    312,253.08x = 430,976.70 × 197,458.44
  4. Step 4: Simplify right side
    312,253.08x = 85,099,986,858.35
  5. Step 5: Solve for x
    x = 85,099,986,858.35/312,253.08
  6. Step 6: Final answer
    x = 272,535.30

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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.