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Finding the Fourth Proportional to 275,430.40, 380,175.36 and 162,289.60

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Solution

The fourth proportional to 275,430.40, 380,175.36 and 162,289.60 is: 224,007.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,430.40 : 380,175.36 = 162,289.60 : x
  2. Step 2: Convert to fraction form
    275,430.40/380,175.36 = 162,289.60/x
  3. Step 3: Cross multiply
    275,430.40x = 380,175.36 × 162,289.60
  4. Step 4: Simplify right side
    275,430.40x = 61,698,507,104.26
  5. Step 5: Solve for x
    x = 61,698,507,104.26/275,430.40
  6. Step 6: Final answer
    x = 224,007.62

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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.