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Finding the Fourth Proportional to 245,351.70, 368,136.90 and 112,163.40

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Solution

The fourth proportional to 245,351.70, 368,136.90 and 112,163.40 is: 168,295.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,351.70 : 368,136.90 = 112,163.40 : x
  2. Step 2: Convert to fraction form
    245,351.70/368,136.90 = 112,163.40/x
  3. Step 3: Cross multiply
    245,351.70x = 368,136.90 × 112,163.40
  4. Step 4: Simplify right side
    245,351.70x = 41,291,486,369.46
  5. Step 5: Solve for x
    x = 41,291,486,369.46/245,351.70
  6. Step 6: Final answer
    x = 168,295.09

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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.