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Finding the Fourth Proportional to 329,039.40, 493,559.10 and 222,751.20

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Solution

The fourth proportional to 329,039.40, 493,559.10 and 222,751.20 is: 334,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,039.40 : 493,559.10 = 222,751.20 : x
  2. Step 2: Convert to fraction form
    329,039.40/493,559.10 = 222,751.20/x
  3. Step 3: Cross multiply
    329,039.40x = 493,559.10 × 222,751.20
  4. Step 4: Simplify right side
    329,039.40x = 109,940,881,795.92
  5. Step 5: Solve for x
    x = 109,940,881,795.92/329,039.40
  6. Step 6: Final answer
    x = 334,126.80

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1.5x scale

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.