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Finding the Fourth Proportional to 220,391.67, 304,140.42 and 130,967.67

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Solution

The fourth proportional to 220,391.67, 304,140.42 and 130,967.67 is: 180,735.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,391.67 : 304,140.42 = 130,967.67 : x
  2. Step 2: Convert to fraction form
    220,391.67/304,140.42 = 130,967.67/x
  3. Step 3: Cross multiply
    220,391.67x = 304,140.42 × 130,967.67
  4. Step 4: Simplify right side
    220,391.67x = 39,832,562,160.22
  5. Step 5: Solve for x
    x = 39,832,562,160.22/220,391.67
  6. Step 6: Final answer
    x = 180,735.33

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1.5x scale

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.