Home / 378,236.36-521,957.04-208,466.84

Finding the Fourth Proportional to 378,236.36, 521,957.04 and 208,466.84

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Solution

The fourth proportional to 378,236.36, 521,957.04 and 208,466.84 is: 287,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,236.36 : 521,957.04 = 208,466.84 : x
  2. Step 2: Convert to fraction form
    378,236.36/521,957.04 = 208,466.84/x
  3. Step 3: Cross multiply
    378,236.36x = 521,957.04 × 208,466.84
  4. Step 4: Simplify right side
    378,236.36x = 108,810,734,744.55
  5. Step 5: Solve for x
    x = 108,810,734,744.55/378,236.36
  6. Step 6: Final answer
    x = 287,679.20

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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.