Home / 257,965.66-356,014.98-143,266.42

Finding the Fourth Proportional to 257,965.66, 356,014.98 and 143,266.42

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Solution

The fourth proportional to 257,965.66, 356,014.98 and 143,266.42 is: 197,720.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,965.66 : 356,014.98 = 143,266.42 : x
  2. Step 2: Convert to fraction form
    257,965.66/356,014.98 = 143,266.42/x
  3. Step 3: Cross multiply
    257,965.66x = 356,014.98 × 143,266.42
  4. Step 4: Simplify right side
    257,965.66x = 51,004,991,650.97
  5. Step 5: Solve for x
    x = 51,004,991,650.97/257,965.66
  6. Step 6: Final answer
    x = 197,720.08

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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.