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Finding the Fourth Proportional to 353,512.80, 487,852.80 and 192,372.48

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Solution

The fourth proportional to 353,512.80, 487,852.80 and 192,372.48 is: 265,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,512.80 : 487,852.80 = 192,372.48 : x
  2. Step 2: Convert to fraction form
    353,512.80/487,852.80 = 192,372.48/x
  3. Step 3: Cross multiply
    353,512.80x = 487,852.80 × 192,372.48
  4. Step 4: Simplify right side
    353,512.80x = 93,849,453,010.94
  5. Step 5: Solve for x
    x = 93,849,453,010.94/353,512.80
  6. Step 6: Final answer
    x = 265,476.82

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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.