Home / 320,213.30-480,302.64-162,437.67

Finding the Fourth Proportional to 320,213.30, 480,302.64 and 162,437.67

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Solution

The fourth proportional to 320,213.30, 480,302.64 and 162,437.67 is: 243,647.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,213.30 : 480,302.64 = 162,437.67 : x
  2. Step 2: Convert to fraction form
    320,213.30/480,302.64 = 162,437.67/x
  3. Step 3: Cross multiply
    320,213.30x = 480,302.64 × 162,437.67
  4. Step 4: Simplify right side
    320,213.30x = 78,019,241,736.45
  5. Step 5: Solve for x
    x = 78,019,241,736.45/320,213.30
  6. Step 6: Final answer
    x = 243,647.73

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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.