Home / 285,669.64-394,228.06-156,620.24

Finding the Fourth Proportional to 285,669.64, 394,228.06 and 156,620.24

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Solution

The fourth proportional to 285,669.64, 394,228.06 and 156,620.24 is: 216,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,669.64 : 394,228.06 = 156,620.24 : x
  2. Step 2: Convert to fraction form
    285,669.64/394,228.06 = 156,620.24/x
  3. Step 3: Cross multiply
    285,669.64x = 394,228.06 × 156,620.24
  4. Step 4: Simplify right side
    285,669.64x = 61,744,093,371.93
  5. Step 5: Solve for x
    x = 61,744,093,371.93/285,669.64
  6. Step 6: Final answer
    x = 216,138.10

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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.