Home / 388,455.60-582,766.56-220,055.52

Finding the Fourth Proportional to 388,455.60, 582,766.56 and 220,055.52

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Solution

The fourth proportional to 388,455.60, 582,766.56 and 220,055.52 is: 330,130.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,455.60 : 582,766.56 = 220,055.52 : x
  2. Step 2: Convert to fraction form
    388,455.60/582,766.56 = 220,055.52/x
  3. Step 3: Cross multiply
    388,455.60x = 582,766.56 × 220,055.52
  4. Step 4: Simplify right side
    388,455.60x = 128,240,998,399.41
  5. Step 5: Solve for x
    x = 128,240,998,399.41/388,455.60
  6. Step 6: Final answer
    x = 330,130.39

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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.