Home / 388,836.64-536,567.25-214,399.09

Finding the Fourth Proportional to 388,836.64, 536,567.25 and 214,399.09

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Solution

The fourth proportional to 388,836.64, 536,567.25 and 214,399.09 is: 295,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,836.64 : 536,567.25 = 214,399.09 : x
  2. Step 2: Convert to fraction form
    388,836.64/536,567.25 = 214,399.09/x
  3. Step 3: Cross multiply
    388,836.64x = 536,567.25 × 214,399.09
  4. Step 4: Simplify right side
    388,836.64x = 115,039,530,123.80
  5. Step 5: Solve for x
    x = 115,039,530,123.80/388,836.64
  6. Step 6: Final answer
    x = 295,855.68

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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.