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Finding the Fourth Proportional to 346.37, 478.04 and 273.02

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Solution

The fourth proportional to 346.37, 478.04 and 273.02 is: 376.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.37 : 478.04 = 273.02 : x
  2. Step 2: Convert to fraction form
    346.37/478.04 = 273.02/x
  3. Step 3: Cross multiply
    346.37x = 478.04 × 273.02
  4. Step 4: Simplify right side
    346.37x = 130,510.73
  5. Step 5: Solve for x
    x = 130,510.73/346.37
  6. Step 6: Final answer
    x = 376.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.