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Finding the Fourth Proportional to 360,546.35, 540,438.16 and 135,809.55

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Solution

The fourth proportional to 360,546.35, 540,438.16 and 135,809.55 is: 203,570.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,546.35 : 540,438.16 = 135,809.55 : x
  2. Step 2: Convert to fraction form
    360,546.35/540,438.16 = 135,809.55/x
  3. Step 3: Cross multiply
    360,546.35x = 540,438.16 × 135,809.55
  4. Step 4: Simplify right side
    360,546.35x = 73,396,663,312.43
  5. Step 5: Solve for x
    x = 73,396,663,312.43/360,546.35
  6. Step 6: Final answer
    x = 203,570.67

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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.