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Finding the Fourth Proportional to 360,546.85, 540,438.91 and 135,810.05

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Solution

The fourth proportional to 360,546.85, 540,438.91 and 135,810.05 is: 203,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,546.85 : 540,438.91 = 135,810.05 : x
  2. Step 2: Convert to fraction form
    360,546.85/540,438.91 = 135,810.05/x
  3. Step 3: Cross multiply
    360,546.85x = 540,438.91 × 135,810.05
  4. Step 4: Simplify right side
    360,546.85x = 73,397,035,389.05
  5. Step 5: Solve for x
    x = 73,397,035,389.05/360,546.85
  6. Step 6: Final answer
    x = 203,571.42

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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.