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Finding the Fourth Proportional to 356,075.04, 491,422.78 and 227,018.22

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Solution

The fourth proportional to 356,075.04, 491,422.78 and 227,018.22 is: 313,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,075.04 : 491,422.78 = 227,018.22 : x
  2. Step 2: Convert to fraction form
    356,075.04/491,422.78 = 227,018.22/x
  3. Step 3: Cross multiply
    356,075.04x = 491,422.78 × 227,018.22
  4. Step 4: Simplify right side
    356,075.04x = 111,561,924,783.05
  5. Step 5: Solve for x
    x = 111,561,924,783.05/356,075.04
  6. Step 6: Final answer
    x = 313,310.15

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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.