Home / 345,104.36-476,170.80-217,706.12

Finding the Fourth Proportional to 345,104.36, 476,170.80 and 217,706.12

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Solution

The fourth proportional to 345,104.36, 476,170.80 and 217,706.12 is: 300,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,104.36 : 476,170.80 = 217,706.12 : x
  2. Step 2: Convert to fraction form
    345,104.36/476,170.80 = 217,706.12/x
  3. Step 3: Cross multiply
    345,104.36x = 476,170.80 × 217,706.12
  4. Step 4: Simplify right side
    345,104.36x = 103,665,297,325.30
  5. Step 5: Solve for x
    x = 103,665,297,325.30/345,104.36
  6. Step 6: Final answer
    x = 300,388.26

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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.