Home / 492,316.36-738,408.90-137,300.65

Finding the Fourth Proportional to 492,316.36, 738,408.90 and 137,300.65

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Solution

The fourth proportional to 492,316.36, 738,408.90 and 137,300.65 is: 205,932.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,316.36 : 738,408.90 = 137,300.65 : x
  2. Step 2: Convert to fraction form
    492,316.36/738,408.90 = 137,300.65/x
  3. Step 3: Cross multiply
    492,316.36x = 738,408.90 × 137,300.65
  4. Step 4: Simplify right side
    492,316.36x = 101,384,021,935.79
  5. Step 5: Solve for x
    x = 101,384,021,935.79/492,316.36
  6. Step 6: Final answer
    x = 205,932.67

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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.