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Finding the Fourth Proportional to 388,525.56, 536,179.86 and 214,103.16

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Solution

The fourth proportional to 388,525.56, 536,179.86 and 214,103.16 is: 295,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,525.56 : 536,179.86 = 214,103.16 : x
  2. Step 2: Convert to fraction form
    388,525.56/536,179.86 = 214,103.16/x
  3. Step 3: Cross multiply
    388,525.56x = 536,179.86 × 214,103.16
  4. Step 4: Simplify right side
    388,525.56x = 114,797,802,354.36
  5. Step 5: Solve for x
    x = 114,797,802,354.36/388,525.56
  6. Step 6: Final answer
    x = 295,470.40

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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.