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Finding the Fourth Proportional to 454,775.80, 682,163.70 and 155,156.80

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Solution

The fourth proportional to 454,775.80, 682,163.70 and 155,156.80 is: 232,735.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,775.80 : 682,163.70 = 155,156.80 : x
  2. Step 2: Convert to fraction form
    454,775.80/682,163.70 = 155,156.80/x
  3. Step 3: Cross multiply
    454,775.80x = 682,163.70 × 155,156.80
  4. Step 4: Simplify right side
    454,775.80x = 105,842,336,768.16
  5. Step 5: Solve for x
    x = 105,842,336,768.16/454,775.80
  6. Step 6: Final answer
    x = 232,735.20

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Similar ratio
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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.