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Finding the Fourth Proportional to 247,307.85, 370,985.27 and 67,395.51

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Solution

The fourth proportional to 247,307.85, 370,985.27 and 67,395.51 is: 101,099.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,307.85 : 370,985.27 = 67,395.51 : x
  2. Step 2: Convert to fraction form
    247,307.85/370,985.27 = 67,395.51/x
  3. Step 3: Cross multiply
    247,307.85x = 370,985.27 × 67,395.51
  4. Step 4: Simplify right side
    247,307.85x = 25,002,741,137.16
  5. Step 5: Solve for x
    x = 25,002,741,137.16/247,307.85
  6. Step 6: Final answer
    x = 101,099.67

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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.