Home / 259,813.37-389,731.01-82,316.45

Finding the Fourth Proportional to 259,813.37, 389,731.01 and 82,316.45

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Solution

The fourth proportional to 259,813.37, 389,731.01 and 82,316.45 is: 123,478.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,813.37 : 389,731.01 = 82,316.45 : x
  2. Step 2: Convert to fraction form
    259,813.37/389,731.01 = 82,316.45/x
  3. Step 3: Cross multiply
    259,813.37x = 389,731.01 × 82,316.45
  4. Step 4: Simplify right side
    259,813.37x = 32,081,270,837.88
  5. Step 5: Solve for x
    x = 32,081,270,837.88/259,813.37
  6. Step 6: Final answer
    x = 123,478.14

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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.