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Finding the Fourth Proportional to 355,628.70, 490,767.66 and 194,484.06

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Solution

The fourth proportional to 355,628.70, 490,767.66 and 194,484.06 is: 268,388.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,628.70 : 490,767.66 = 194,484.06 : x
  2. Step 2: Convert to fraction form
    355,628.70/490,767.66 = 194,484.06/x
  3. Step 3: Cross multiply
    355,628.70x = 490,767.66 × 194,484.06
  4. Step 4: Simplify right side
    355,628.70x = 95,446,487,033.50
  5. Step 5: Solve for x
    x = 95,446,487,033.50/355,628.70
  6. Step 6: Final answer
    x = 268,388.03

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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.