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Finding the Fourth Proportional to 220,544.64, 330,810.82 and 70,783.76

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Solution

The fourth proportional to 220,544.64, 330,810.82 and 70,783.76 is: 106,173.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,544.64 : 330,810.82 = 70,783.76 : x
  2. Step 2: Convert to fraction form
    220,544.64/330,810.82 = 70,783.76/x
  3. Step 3: Cross multiply
    220,544.64x = 330,810.82 × 70,783.76
  4. Step 4: Simplify right side
    220,544.64x = 23,416,033,688.28
  5. Step 5: Solve for x
    x = 23,416,033,688.28/220,544.64
  6. Step 6: Final answer
    x = 106,173.67

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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.