Home / 220,829.40-331,244.10-154,128.60

Finding the Fourth Proportional to 220,829.40, 331,244.10 and 154,128.60

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Solution

The fourth proportional to 220,829.40, 331,244.10 and 154,128.60 is: 231,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,829.40 : 331,244.10 = 154,128.60 : x
  2. Step 2: Convert to fraction form
    220,829.40/331,244.10 = 154,128.60/x
  3. Step 3: Cross multiply
    220,829.40x = 331,244.10 × 154,128.60
  4. Step 4: Simplify right side
    220,829.40x = 51,054,189,391.26
  5. Step 5: Solve for x
    x = 51,054,189,391.26/220,829.40
  6. Step 6: Final answer
    x = 231,192.90

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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.