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Finding the Fourth Proportional to 239,408.60, 359,165.28 and 70,942.10

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Solution

The fourth proportional to 239,408.60, 359,165.28 and 70,942.10 is: 106,428.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,408.60 : 359,165.28 = 70,942.10 : x
  2. Step 2: Convert to fraction form
    239,408.60/359,165.28 = 70,942.10/x
  3. Step 3: Cross multiply
    239,408.60x = 359,165.28 × 70,942.10
  4. Step 4: Simplify right side
    239,408.60x = 25,479,939,210.29
  5. Step 5: Solve for x
    x = 25,479,939,210.29/239,408.60
  6. Step 6: Final answer
    x = 106,428.67

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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.