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Finding the Fourth Proportional to 307,730.60, 461,336.70 and 159,986.60

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Solution

The fourth proportional to 307,730.60, 461,336.70 and 159,986.60 is: 239,845.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,730.60 : 461,336.70 = 159,986.60 : x
  2. Step 2: Convert to fraction form
    307,730.60/461,336.70 = 159,986.60/x
  3. Step 3: Cross multiply
    307,730.60x = 461,336.70 × 159,986.60
  4. Step 4: Simplify right side
    307,730.60x = 73,807,690,088.22
  5. Step 5: Solve for x
    x = 73,807,690,088.22/307,730.60
  6. Step 6: Final answer
    x = 239,845.14

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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.