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Finding the Fourth Proportional to 370,630.40, 555,608.64 and 192,928.64

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Solution

The fourth proportional to 370,630.40, 555,608.64 and 192,928.64 is: 289,217.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,630.40 : 555,608.64 = 192,928.64 : x
  2. Step 2: Convert to fraction form
    370,630.40/555,608.64 = 192,928.64/x
  3. Step 3: Cross multiply
    370,630.40x = 555,608.64 × 192,928.64
  4. Step 4: Simplify right side
    370,630.40x = 107,192,819,287.45
  5. Step 5: Solve for x
    x = 107,192,819,287.45/370,630.40
  6. Step 6: Final answer
    x = 289,217.56

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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.