Home / 286,186.06-394,917-158,851.63

Finding the Fourth Proportional to 286,186.06, 394,917 and 158,851.63

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Solution

The fourth proportional to 286,186.06, 394,917 and 158,851.63 is: 219,204.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,186.06 : 394,917 = 158,851.63 : x
  2. Step 2: Convert to fraction form
    286,186.06/394,917 = 158,851.63/x
  3. Step 3: Cross multiply
    286,186.06x = 394,917 × 158,851.63
  4. Step 4: Simplify right side
    286,186.06x = 62,733,209,164.71
  5. Step 5: Solve for x
    x = 62,733,209,164.71/286,186.06
  6. Step 6: Final answer
    x = 219,204.28

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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.