Home / 388,914.37-536,682.58-219,159.43

Finding the Fourth Proportional to 388,914.37, 536,682.58 and 219,159.43

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Solution

The fourth proportional to 388,914.37, 536,682.58 and 219,159.43 is: 302,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,914.37 : 536,682.58 = 219,159.43 : x
  2. Step 2: Convert to fraction form
    388,914.37/536,682.58 = 219,159.43/x
  3. Step 3: Cross multiply
    388,914.37x = 536,682.58 × 219,159.43
  4. Step 4: Simplify right side
    388,914.37x = 117,619,048,323.73
  5. Step 5: Solve for x
    x = 117,619,048,323.73/388,914.37
  6. Step 6: Final answer
    x = 302,429.17

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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.