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Finding the Fourth Proportional to 308,840.80, 462,872.40 and 273,848.80

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Solution

The fourth proportional to 308,840.80, 462,872.40 and 273,848.80 is: 410,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,840.80 : 462,872.40 = 273,848.80 : x
  2. Step 2: Convert to fraction form
    308,840.80/462,872.40 = 273,848.80/x
  3. Step 3: Cross multiply
    308,840.80x = 462,872.40 × 273,848.80
  4. Step 4: Simplify right side
    308,840.80x = 126,757,051,293.12
  5. Step 5: Solve for x
    x = 126,757,051,293.12/308,840.80
  6. Step 6: Final answer
    x = 410,428.45

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1.5x scale

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.