Home / 278,900.56-384,871.93-151,573.42

Finding the Fourth Proportional to 278,900.56, 384,871.93 and 151,573.42

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Solution

The fourth proportional to 278,900.56, 384,871.93 and 151,573.42 is: 209,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,900.56 : 384,871.93 = 151,573.42 : x
  2. Step 2: Convert to fraction form
    278,900.56/384,871.93 = 151,573.42/x
  3. Step 3: Cross multiply
    278,900.56x = 384,871.93 × 151,573.42
  4. Step 4: Simplify right side
    278,900.56x = 58,336,354,692.10
  5. Step 5: Solve for x
    x = 58,336,354,692.10/278,900.56
  6. Step 6: Final answer
    x = 209,165.43

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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.