Home / 389,319.90-582,813.45-231,467.10

Finding the Fourth Proportional to 389,319.90, 582,813.45 and 231,467.10

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Solution

The fourth proportional to 389,319.90, 582,813.45 and 231,467.10 is: 346,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,319.90 : 582,813.45 = 231,467.10 : x
  2. Step 2: Convert to fraction form
    389,319.90/582,813.45 = 231,467.10/x
  3. Step 3: Cross multiply
    389,319.90x = 582,813.45 × 231,467.10
  4. Step 4: Simplify right side
    389,319.90x = 134,902,139,112.50
  5. Step 5: Solve for x
    x = 134,902,139,112.50/389,319.90
  6. Step 6: Final answer
    x = 346,507.18

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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.