Home / 421,964.79-582,316.92-230,974.08

Finding the Fourth Proportional to 421,964.79, 582,316.92 and 230,974.08

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Solution

The fourth proportional to 421,964.79, 582,316.92 and 230,974.08 is: 318,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,964.79 : 582,316.92 = 230,974.08 : x
  2. Step 2: Convert to fraction form
    421,964.79/582,316.92 = 230,974.08/x
  3. Step 3: Cross multiply
    421,964.79x = 582,316.92 × 230,974.08
  4. Step 4: Simplify right side
    421,964.79x = 134,500,114,865.43
  5. Step 5: Solve for x
    x = 134,500,114,865.43/421,964.79
  6. Step 6: Final answer
    x = 318,747.25

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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.