Home / 305,626.49-421,766.18-190,971.67

Finding the Fourth Proportional to 305,626.49, 421,766.18 and 190,971.67

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Solution

The fourth proportional to 305,626.49, 421,766.18 and 190,971.67 is: 263,541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,626.49 : 421,766.18 = 190,971.67 : x
  2. Step 2: Convert to fraction form
    305,626.49/421,766.18 = 190,971.67/x
  3. Step 3: Cross multiply
    305,626.49x = 421,766.18 × 190,971.67
  4. Step 4: Simplify right side
    305,626.49x = 80,545,392,032.61
  5. Step 5: Solve for x
    x = 80,545,392,032.61/305,626.49
  6. Step 6: Final answer
    x = 263,541.92

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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.