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Finding the Fourth Proportional to 245,327.20, 367,699.20 and 103,172.20

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Solution

The fourth proportional to 245,327.20, 367,699.20 and 103,172.20 is: 154,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,327.20 : 367,699.20 = 103,172.20 : x
  2. Step 2: Convert to fraction form
    245,327.20/367,699.20 = 103,172.20/x
  3. Step 3: Cross multiply
    245,327.20x = 367,699.20 × 103,172.20
  4. Step 4: Simplify right side
    245,327.20x = 37,936,335,402.24
  5. Step 5: Solve for x
    x = 37,936,335,402.24/245,327.20
  6. Step 6: Final answer
    x = 154,635.67

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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.