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Finding the Fourth Proportional to 188,522.60, 260,166.20 and 102,487.40

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Solution

The fourth proportional to 188,522.60, 260,166.20 and 102,487.40 is: 141,435.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,522.60 : 260,166.20 = 102,487.40 : x
  2. Step 2: Convert to fraction form
    188,522.60/260,166.20 = 102,487.40/x
  3. Step 3: Cross multiply
    188,522.60x = 260,166.20 × 102,487.40
  4. Step 4: Simplify right side
    188,522.60x = 26,663,757,405.88
  5. Step 5: Solve for x
    x = 26,663,757,405.88/188,522.60
  6. Step 6: Final answer
    x = 141,435.34

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1.5x scale

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.