Home / 430,844.68-646,362.96-131,348.54

Finding the Fourth Proportional to 430,844.68, 646,362.96 and 131,348.54

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Solution

The fourth proportional to 430,844.68, 646,362.96 and 131,348.54 is: 197,052.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,844.68 : 646,362.96 = 131,348.54 : x
  2. Step 2: Convert to fraction form
    430,844.68/646,362.96 = 131,348.54/x
  3. Step 3: Cross multiply
    430,844.68x = 646,362.96 × 131,348.54
  4. Step 4: Simplify right side
    430,844.68x = 84,898,831,106.08
  5. Step 5: Solve for x
    x = 84,898,831,106.08/430,844.68
  6. Step 6: Final answer
    x = 197,052.06

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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.