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Finding the Fourth Proportional to 367,168.80, 550,720.80 and 100,905.60

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Solution

The fourth proportional to 367,168.80, 550,720.80 and 100,905.60 is: 151,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,168.80 : 550,720.80 = 100,905.60 : x
  2. Step 2: Convert to fraction form
    367,168.80/550,720.80 = 100,905.60/x
  3. Step 3: Cross multiply
    367,168.80x = 550,720.80 × 100,905.60
  4. Step 4: Simplify right side
    367,168.80x = 55,570,812,756.48
  5. Step 5: Solve for x
    x = 55,570,812,756.48/367,168.80
  6. Step 6: Final answer
    x = 151,349.50

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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.