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Finding the Fourth Proportional to 188,516, 260,152.62 and 103,633.67

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Solution

The fourth proportional to 188,516, 260,152.62 and 103,633.67 is: 143,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,516 : 260,152.62 = 103,633.67 : x
  2. Step 2: Convert to fraction form
    188,516/260,152.62 = 103,633.67/x
  3. Step 3: Cross multiply
    188,516x = 260,152.62 × 103,633.67
  4. Step 4: Simplify right side
    188,516x = 26,960,570,770.72
  5. Step 5: Solve for x
    x = 26,960,570,770.72/188,516
  6. Step 6: Final answer
    x = 143,014.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.