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Finding the Fourth Proportional to 336,048.60, 504,072.90 and 290,429.40

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Solution

The fourth proportional to 336,048.60, 504,072.90 and 290,429.40 is: 435,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,048.60 : 504,072.90 = 290,429.40 : x
  2. Step 2: Convert to fraction form
    336,048.60/504,072.90 = 290,429.40/x
  3. Step 3: Cross multiply
    336,048.60x = 504,072.90 × 290,429.40
  4. Step 4: Simplify right side
    336,048.60x = 146,397,589,903.26
  5. Step 5: Solve for x
    x = 146,397,589,903.26/336,048.60
  6. Step 6: Final answer
    x = 435,644.10

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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.