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Finding the Fourth Proportional to 240,693.60, 361,270.80 and 205,672.80

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Solution

The fourth proportional to 240,693.60, 361,270.80 and 205,672.80 is: 308,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,693.60 : 361,270.80 = 205,672.80 : x
  2. Step 2: Convert to fraction form
    240,693.60/361,270.80 = 205,672.80/x
  3. Step 3: Cross multiply
    240,693.60x = 361,270.80 × 205,672.80
  4. Step 4: Simplify right side
    240,693.60x = 74,303,576,994.24
  5. Step 5: Solve for x
    x = 74,303,576,994.24/240,693.60
  6. Step 6: Final answer
    x = 308,706.08

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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.