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Finding the Fourth Proportional to 397,436.94, 548,477.01 and 227,703.84

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Solution

The fourth proportional to 397,436.94, 548,477.01 and 227,703.84 is: 314,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,436.94 : 548,477.01 = 227,703.84 : x
  2. Step 2: Convert to fraction form
    397,436.94/548,477.01 = 227,703.84/x
  3. Step 3: Cross multiply
    397,436.94x = 548,477.01 × 227,703.84
  4. Step 4: Simplify right side
    397,436.94x = 124,890,321,328.72
  5. Step 5: Solve for x
    x = 124,890,321,328.72/397,436.94
  6. Step 6: Final answer
    x = 314,239.34

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1.5x scale

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.