Home / 328,564.20-492,263.10-203,759.40

Finding the Fourth Proportional to 328,564.20, 492,263.10 and 203,759.40

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Solution

The fourth proportional to 328,564.20, 492,263.10 and 203,759.40 is: 305,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,564.20 : 492,263.10 = 203,759.40 : x
  2. Step 2: Convert to fraction form
    328,564.20/492,263.10 = 203,759.40/x
  3. Step 3: Cross multiply
    328,564.20x = 492,263.10 × 203,759.40
  4. Step 4: Simplify right side
    328,564.20x = 100,303,233,898.14
  5. Step 5: Solve for x
    x = 100,303,233,898.14/328,564.20
  6. Step 6: Final answer
    x = 305,277.43

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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.