Home / 421,968.96-582,323.58-231,000.12

Finding the Fourth Proportional to 421,968.96, 582,323.58 and 231,000.12

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Solution

The fourth proportional to 421,968.96, 582,323.58 and 231,000.12 is: 318,783.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,968.96 : 582,323.58 = 231,000.12 : x
  2. Step 2: Convert to fraction form
    421,968.96/582,323.58 = 231,000.12/x
  3. Step 3: Cross multiply
    421,968.96x = 582,323.58 × 231,000.12
  4. Step 4: Simplify right side
    421,968.96x = 134,516,816,858.83
  5. Step 5: Solve for x
    x = 134,516,816,858.83/421,968.96
  6. Step 6: Final answer
    x = 318,783.68

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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.