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Finding the Fourth Proportional to 300,512.88, 414,718.95 and 171,472.37

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Solution

The fourth proportional to 300,512.88, 414,718.95 and 171,472.37 is: 236,638.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,512.88 : 414,718.95 = 171,472.37 : x
  2. Step 2: Convert to fraction form
    300,512.88/414,718.95 = 171,472.37/x
  3. Step 3: Cross multiply
    300,512.88x = 414,718.95 × 171,472.37
  4. Step 4: Simplify right side
    300,512.88x = 71,112,839,166.82
  5. Step 5: Solve for x
    x = 71,112,839,166.82/300,512.88
  6. Step 6: Final answer
    x = 236,638.24

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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.