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Finding the Fourth Proportional to 289,350.60, 434,025.90 and 242,694.60

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Solution

The fourth proportional to 289,350.60, 434,025.90 and 242,694.60 is: 364,041.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,350.60 : 434,025.90 = 242,694.60 : x
  2. Step 2: Convert to fraction form
    289,350.60/434,025.90 = 242,694.60/x
  3. Step 3: Cross multiply
    289,350.60x = 434,025.90 × 242,694.60
  4. Step 4: Simplify right side
    289,350.60x = 105,335,742,190.14
  5. Step 5: Solve for x
    x = 105,335,742,190.14/289,350.60
  6. Step 6: Final answer
    x = 364,041.90

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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.