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Finding the Fourth Proportional to 341,705.60, 513,076.80 and 262,908.80

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Solution

The fourth proportional to 341,705.60, 513,076.80 and 262,908.80 is: 394,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,705.60 : 513,076.80 = 262,908.80 : x
  2. Step 2: Convert to fraction form
    341,705.60/513,076.80 = 262,908.80/x
  3. Step 3: Cross multiply
    341,705.60x = 513,076.80 × 262,908.80
  4. Step 4: Simplify right side
    341,705.60x = 134,892,405,795.84
  5. Step 5: Solve for x
    x = 134,892,405,795.84/341,705.60
  6. Step 6: Final answer
    x = 394,762.06

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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.