Home / 286,112.86-394,828.23-158,785.18

Finding the Fourth Proportional to 286,112.86, 394,828.23 and 158,785.18

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Solution

The fourth proportional to 286,112.86, 394,828.23 and 158,785.18 is: 219,119.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,112.86 : 394,828.23 = 158,785.18 : x
  2. Step 2: Convert to fraction form
    286,112.86/394,828.23 = 158,785.18/x
  3. Step 3: Cross multiply
    286,112.86x = 394,828.23 × 158,785.18
  4. Step 4: Simplify right side
    286,112.86x = 62,692,871,569.63
  5. Step 5: Solve for x
    x = 62,692,871,569.63/286,112.86
  6. Step 6: Final answer
    x = 219,119.38

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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.