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Finding the Fourth Proportional to 336,880.64, 505,684.92 and 299,678.96

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Solution

The fourth proportional to 336,880.64, 505,684.92 and 299,678.96 is: 449,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,880.64 : 505,684.92 = 299,678.96 : x
  2. Step 2: Convert to fraction form
    336,880.64/505,684.92 = 299,678.96/x
  3. Step 3: Cross multiply
    336,880.64x = 505,684.92 × 299,678.96
  4. Step 4: Simplify right side
    336,880.64x = 151,543,130,913.28
  5. Step 5: Solve for x
    x = 151,543,130,913.28/336,880.64
  6. Step 6: Final answer
    x = 449,842.21

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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.