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Finding the Fourth Proportional to 220,179.84, 303,750.72 and 130,704

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Solution

The fourth proportional to 220,179.84, 303,750.72 and 130,704 is: 180,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,179.84 : 303,750.72 = 130,704 : x
  2. Step 2: Convert to fraction form
    220,179.84/303,750.72 = 130,704/x
  3. Step 3: Cross multiply
    220,179.84x = 303,750.72 × 130,704
  4. Step 4: Simplify right side
    220,179.84x = 39,701,434,106.88
  5. Step 5: Solve for x
    x = 39,701,434,106.88/220,179.84
  6. Step 6: Final answer
    x = 180,313.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.