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Finding the Fourth Proportional to 355,366.36, 490,406.43 and 194,223.34

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Solution

The fourth proportional to 355,366.36, 490,406.43 and 194,223.34 is: 268,028.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,366.36 : 490,406.43 = 194,223.34 : x
  2. Step 2: Convert to fraction form
    355,366.36/490,406.43 = 194,223.34/x
  3. Step 3: Cross multiply
    355,366.36x = 490,406.43 × 194,223.34
  4. Step 4: Simplify right side
    355,366.36x = 95,248,374,792.08
  5. Step 5: Solve for x
    x = 95,248,374,792.08/355,366.36
  6. Step 6: Final answer
    x = 268,028.68

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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.