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Finding the Fourth Proportional to 388,860.06, 536,658.83 and 214,464.37

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Solution

The fourth proportional to 388,860.06, 536,658.83 and 214,464.37 is: 295,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,860.06 : 536,658.83 = 214,464.37 : x
  2. Step 2: Convert to fraction form
    388,860.06/536,658.83 = 214,464.37/x
  3. Step 3: Cross multiply
    388,860.06x = 536,658.83 × 214,464.37
  4. Step 4: Simplify right side
    388,860.06x = 115,094,197,880.89
  5. Step 5: Solve for x
    x = 115,094,197,880.89/388,860.06
  6. Step 6: Final answer
    x = 295,978.45

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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.