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Finding the Fourth Proportional to 321,845.63, 482,768.85 and 111,483.55

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Solution

The fourth proportional to 321,845.63, 482,768.85 and 111,483.55 is: 167,225.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,845.63 : 482,768.85 = 111,483.55 : x
  2. Step 2: Convert to fraction form
    321,845.63/482,768.85 = 111,483.55/x
  3. Step 3: Cross multiply
    321,845.63x = 482,768.85 × 111,483.55
  4. Step 4: Simplify right side
    321,845.63x = 53,820,782,813.57
  5. Step 5: Solve for x
    x = 53,820,782,813.57/321,845.63
  6. Step 6: Final answer
    x = 167,225.46

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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.