Home / 257,985.33-356,012.96-143,260.44

Finding the Fourth Proportional to 257,985.33, 356,012.96 and 143,260.44

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Solution

The fourth proportional to 257,985.33, 356,012.96 and 143,260.44 is: 197,695.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,985.33 : 356,012.96 = 143,260.44 : x
  2. Step 2: Convert to fraction form
    257,985.33/356,012.96 = 143,260.44/x
  3. Step 3: Cross multiply
    257,985.33x = 356,012.96 × 143,260.44
  4. Step 4: Simplify right side
    257,985.33x = 51,002,572,579.00
  5. Step 5: Solve for x
    x = 51,002,572,579.00/257,985.33
  6. Step 6: Final answer
    x = 197,695.63

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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.