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Finding the Fourth Proportional to 220,397.64, 330,563.16 and 70,622.16

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Solution

The fourth proportional to 220,397.64, 330,563.16 and 70,622.16 is: 105,922.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,397.64 : 330,563.16 = 70,622.16 : x
  2. Step 2: Convert to fraction form
    220,397.64/330,563.16 = 70,622.16/x
  3. Step 3: Cross multiply
    220,397.64x = 330,563.16 × 70,622.16
  4. Step 4: Simplify right side
    220,397.64x = 23,345,084,375.63
  5. Step 5: Solve for x
    x = 23,345,084,375.63/220,397.64
  6. Step 6: Final answer
    x = 105,922.57

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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.