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Finding the Fourth Proportional to 445,836, 668,804.78 and 161,660.41

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Solution

The fourth proportional to 445,836, 668,804.78 and 161,660.41 is: 242,509.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,836 : 668,804.78 = 161,660.41 : x
  2. Step 2: Convert to fraction form
    445,836/668,804.78 = 161,660.41/x
  3. Step 3: Cross multiply
    445,836x = 668,804.78 × 161,660.41
  4. Step 4: Simplify right side
    445,836x = 108,119,254,944.76
  5. Step 5: Solve for x
    x = 108,119,254,944.76/445,836
  6. Step 6: Final answer
    x = 242,509.03

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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.