Home / 257,983.96-387,086.82-133,412.44

Finding the Fourth Proportional to 257,983.96, 387,086.82 and 133,412.44

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Solution

The fourth proportional to 257,983.96, 387,086.82 and 133,412.44 is: 200,176.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,983.96 : 387,086.82 = 133,412.44 : x
  2. Step 2: Convert to fraction form
    257,983.96/387,086.82 = 133,412.44/x
  3. Step 3: Cross multiply
    257,983.96x = 387,086.82 × 133,412.44
  4. Step 4: Simplify right side
    257,983.96x = 51,642,197,148.04
  5. Step 5: Solve for x
    x = 51,642,197,148.04/257,983.96
  6. Step 6: Final answer
    x = 200,176.00

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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.