Home / 289,606.21-434,278.09-188,304.37

Finding the Fourth Proportional to 289,606.21, 434,278.09 and 188,304.37

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Solution

The fourth proportional to 289,606.21, 434,278.09 and 188,304.37 is: 282,371.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,606.21 : 434,278.09 = 188,304.37 : x
  2. Step 2: Convert to fraction form
    289,606.21/434,278.09 = 188,304.37/x
  3. Step 3: Cross multiply
    289,606.21x = 434,278.09 × 188,304.37
  4. Step 4: Simplify right side
    289,606.21x = 81,776,462,142.25
  5. Step 5: Solve for x
    x = 81,776,462,142.25/289,606.21
  6. Step 6: Final answer
    x = 282,371.23

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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.