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Finding the Fourth Proportional to 355,439.74, 490,506.88 and 194,295.44

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Solution

The fourth proportional to 355,439.74, 490,506.88 and 194,295.44 is: 268,127.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,439.74 : 490,506.88 = 194,295.44 : x
  2. Step 2: Convert to fraction form
    355,439.74/490,506.88 = 194,295.44/x
  3. Step 3: Cross multiply
    355,439.74x = 490,506.88 × 194,295.44
  4. Step 4: Simplify right side
    355,439.74x = 95,303,250,072.63
  5. Step 5: Solve for x
    x = 95,303,250,072.63/355,439.74
  6. Step 6: Final answer
    x = 268,127.73

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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.