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Finding the Fourth Proportional to 340,836.40, 511,254.60 and 304,094.80

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Solution

The fourth proportional to 340,836.40, 511,254.60 and 304,094.80 is: 456,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,836.40 : 511,254.60 = 304,094.80 : x
  2. Step 2: Convert to fraction form
    340,836.40/511,254.60 = 304,094.80/x
  3. Step 3: Cross multiply
    340,836.40x = 511,254.60 × 304,094.80
  4. Step 4: Simplify right side
    340,836.40x = 155,469,865,336.08
  5. Step 5: Solve for x
    x = 155,469,865,336.08/340,836.40
  6. Step 6: Final answer
    x = 456,142.20

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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.