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Finding the Fourth Proportional to 336,013.20, 504,019.80 and 136,429.20

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Solution

The fourth proportional to 336,013.20, 504,019.80 and 136,429.20 is: 204,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,013.20 : 504,019.80 = 136,429.20 : x
  2. Step 2: Convert to fraction form
    336,013.20/504,019.80 = 136,429.20/x
  3. Step 3: Cross multiply
    336,013.20x = 504,019.80 × 136,429.20
  4. Step 4: Simplify right side
    336,013.20x = 68,763,018,098.16
  5. Step 5: Solve for x
    x = 68,763,018,098.16/336,013.20
  6. Step 6: Final answer
    x = 204,643.80

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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.