Home / 315,107.36-434,938.08-179,214.56

Finding the Fourth Proportional to 315,107.36, 434,938.08 and 179,214.56

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Solution

The fourth proportional to 315,107.36, 434,938.08 and 179,214.56 is: 247,367.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,107.36 : 434,938.08 = 179,214.56 : x
  2. Step 2: Convert to fraction form
    315,107.36/434,938.08 = 179,214.56/x
  3. Step 3: Cross multiply
    315,107.36x = 434,938.08 × 179,214.56
  4. Step 4: Simplify right side
    315,107.36x = 77,947,236,634.44
  5. Step 5: Solve for x
    x = 77,947,236,634.44/315,107.36
  6. Step 6: Final answer
    x = 247,367.24

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1.5x scale

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.