Home / 190,409.28-285,263.60-119,318.67

Finding the Fourth Proportional to 190,409.28, 285,263.60 and 119,318.67

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Solution

The fourth proportional to 190,409.28, 285,263.60 and 119,318.67 is: 178,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,409.28 : 285,263.60 = 119,318.67 : x
  2. Step 2: Convert to fraction form
    190,409.28/285,263.60 = 119,318.67/x
  3. Step 3: Cross multiply
    190,409.28x = 285,263.60 × 119,318.67
  4. Step 4: Simplify right side
    190,409.28x = 34,037,273,351.41
  5. Step 5: Solve for x
    x = 34,037,273,351.41/190,409.28
  6. Step 6: Final answer
    x = 178,758.48

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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.