Home / 243,839.21-336,498.61-136,411.04

Finding the Fourth Proportional to 243,839.21, 336,498.61 and 136,411.04

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Solution

The fourth proportional to 243,839.21, 336,498.61 and 136,411.04 is: 188,247.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,839.21 : 336,498.61 = 136,411.04 : x
  2. Step 2: Convert to fraction form
    243,839.21/336,498.61 = 136,411.04/x
  3. Step 3: Cross multiply
    243,839.21x = 336,498.61 × 136,411.04
  4. Step 4: Simplify right side
    243,839.21x = 45,902,125,348.65
  5. Step 5: Solve for x
    x = 45,902,125,348.65/243,839.21
  6. Step 6: Final answer
    x = 188,247.52

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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.