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Finding the Fourth Proportional to 351,401.99, 484,934.09 and 190,257

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Solution

The fourth proportional to 351,401.99, 484,934.09 and 190,257 is: 262,554.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,401.99 : 484,934.09 = 190,257 : x
  2. Step 2: Convert to fraction form
    351,401.99/484,934.09 = 190,257/x
  3. Step 3: Cross multiply
    351,401.99x = 484,934.09 × 190,257
  4. Step 4: Simplify right side
    351,401.99x = 92,262,104,209.85
  5. Step 5: Solve for x
    x = 92,262,104,209.85/351,401.99
  6. Step 6: Final answer
    x = 262,554.31

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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.