Home / 421,936.16-582,249.47-230,912.64

Finding the Fourth Proportional to 421,936.16, 582,249.47 and 230,912.64

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Solution

The fourth proportional to 421,936.16, 582,249.47 and 230,912.64 is: 318,647.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,936.16 : 582,249.47 = 230,912.64 : x
  2. Step 2: Convert to fraction form
    421,936.16/582,249.47 = 230,912.64/x
  3. Step 3: Cross multiply
    421,936.16x = 582,249.47 × 230,912.64
  4. Step 4: Simplify right side
    421,936.16x = 134,448,761,101.74
  5. Step 5: Solve for x
    x = 134,448,761,101.74/421,936.16
  6. Step 6: Final answer
    x = 318,647.17

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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.