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Finding the Fourth Proportional to 336,012.20, 504,018.30 and 136,428.20

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Solution

The fourth proportional to 336,012.20, 504,018.30 and 136,428.20 is: 204,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,012.20 : 504,018.30 = 136,428.20 : x
  2. Step 2: Convert to fraction form
    336,012.20/504,018.30 = 136,428.20/x
  3. Step 3: Cross multiply
    336,012.20x = 504,018.30 × 136,428.20
  4. Step 4: Simplify right side
    336,012.20x = 68,762,309,436.06
  5. Step 5: Solve for x
    x = 68,762,309,436.06/336,012.20
  6. Step 6: Final answer
    x = 204,642.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.