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Finding the Fourth Proportional to 192,604.48, 288,942.88 and 87,430.84

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Solution

The fourth proportional to 192,604.48, 288,942.88 and 87,430.84 is: 131,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,604.48 : 288,942.88 = 87,430.84 : x
  2. Step 2: Convert to fraction form
    192,604.48/288,942.88 = 87,430.84/x
  3. Step 3: Cross multiply
    192,604.48x = 288,942.88 × 87,430.84
  4. Step 4: Simplify right side
    192,604.48x = 25,262,518,710.42
  5. Step 5: Solve for x
    x = 25,262,518,710.42/192,604.48
  6. Step 6: Final answer
    x = 131,162.67

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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.