Home / 318,147.46-438,997.77-187,247.27

Finding the Fourth Proportional to 318,147.46, 438,997.77 and 187,247.27

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Solution

The fourth proportional to 318,147.46, 438,997.77 and 187,247.27 is: 258,374.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,147.46 : 438,997.77 = 187,247.27 : x
  2. Step 2: Convert to fraction form
    318,147.46/438,997.77 = 187,247.27/x
  3. Step 3: Cross multiply
    318,147.46x = 438,997.77 × 187,247.27
  4. Step 4: Simplify right side
    318,147.46x = 82,201,133,968.59
  5. Step 5: Solve for x
    x = 82,201,133,968.59/318,147.46
  6. Step 6: Final answer
    x = 258,374.32

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1.5x scale

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.