Home / 380,982.46-525,735.60-217,606.88

Finding the Fourth Proportional to 380,982.46, 525,735.60 and 217,606.88

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Solution

The fourth proportional to 380,982.46, 525,735.60 and 217,606.88 is: 300,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,982.46 : 525,735.60 = 217,606.88 : x
  2. Step 2: Convert to fraction form
    380,982.46/525,735.60 = 217,606.88/x
  3. Step 3: Cross multiply
    380,982.46x = 525,735.60 × 217,606.88
  4. Step 4: Simplify right side
    380,982.46x = 114,403,683,620.93
  5. Step 5: Solve for x
    x = 114,403,683,620.93/380,982.46
  6. Step 6: Final answer
    x = 300,285.96

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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.