Home / 314,640.45-434,033.24-187,291.44

Finding the Fourth Proportional to 314,640.45, 434,033.24 and 187,291.44

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Solution

The fourth proportional to 314,640.45, 434,033.24 and 187,291.44 is: 258,360.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,640.45 : 434,033.24 = 187,291.44 : x
  2. Step 2: Convert to fraction form
    314,640.45/434,033.24 = 187,291.44/x
  3. Step 3: Cross multiply
    314,640.45x = 434,033.24 × 187,291.44
  4. Step 4: Simplify right side
    314,640.45x = 81,290,709,591.01
  5. Step 5: Solve for x
    x = 81,290,709,591.01/314,640.45
  6. Step 6: Final answer
    x = 258,360.64

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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.