Home / 388,748.03-583,201.26-220,343.55

Finding the Fourth Proportional to 388,748.03, 583,201.26 and 220,343.55

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Solution

The fourth proportional to 388,748.03, 583,201.26 and 220,343.55 is: 330,560.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,748.03 : 583,201.26 = 220,343.55 : x
  2. Step 2: Convert to fraction form
    388,748.03/583,201.26 = 220,343.55/x
  3. Step 3: Cross multiply
    388,748.03x = 583,201.26 × 220,343.55
  4. Step 4: Simplify right side
    388,748.03x = 128,504,635,992.87
  5. Step 5: Solve for x
    x = 128,504,635,992.87/388,748.03
  6. Step 6: Final answer
    x = 330,560.23

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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.