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Finding the Fourth Proportional to 336,090.40, 504,135.60 and 299,348.80

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Solution

The fourth proportional to 336,090.40, 504,135.60 and 299,348.80 is: 449,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,090.40 : 504,135.60 = 299,348.80 : x
  2. Step 2: Convert to fraction form
    336,090.40/504,135.60 = 299,348.80/x
  3. Step 3: Cross multiply
    336,090.40x = 504,135.60 × 299,348.80
  4. Step 4: Simplify right side
    336,090.40x = 150,912,386,897.28
  5. Step 5: Solve for x
    x = 150,912,386,897.28/336,090.40
  6. Step 6: Final answer
    x = 449,023.20

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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.