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Finding the Fourth Proportional to 388,580, 582,480.88 and 151,596.64

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Solution

The fourth proportional to 388,580, 582,480.88 and 151,596.64 is: 227,243.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,580 : 582,480.88 = 151,596.64 : x
  2. Step 2: Convert to fraction form
    388,580/582,480.88 = 151,596.64/x
  3. Step 3: Cross multiply
    388,580x = 582,480.88 × 151,596.64
  4. Step 4: Simplify right side
    388,580x = 88,302,144,272.24
  5. Step 5: Solve for x
    x = 88,302,144,272.24/388,580
  6. Step 6: Final answer
    x = 227,243.15

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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.