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Finding the Fourth Proportional to 382,365.70, 573,425.75 and 126,140.67

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Solution

The fourth proportional to 382,365.70, 573,425.75 and 126,140.67 is: 189,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,365.70 : 573,425.75 = 126,140.67 : x
  2. Step 2: Convert to fraction form
    382,365.70/573,425.75 = 126,140.67/x
  3. Step 3: Cross multiply
    382,365.70x = 573,425.75 × 126,140.67
  4. Step 4: Simplify right side
    382,365.70x = 72,332,308,615.60
  5. Step 5: Solve for x
    x = 72,332,308,615.60/382,365.70
  6. Step 6: Final answer
    x = 189,170.50

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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.