Home / 255,280.41-383,157.06-129,009.51

Finding the Fourth Proportional to 255,280.41, 383,157.06 and 129,009.51

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Solution

The fourth proportional to 255,280.41, 383,157.06 and 129,009.51 is: 193,633.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,280.41 : 383,157.06 = 129,009.51 : x
  2. Step 2: Convert to fraction form
    255,280.41/383,157.06 = 129,009.51/x
  3. Step 3: Cross multiply
    255,280.41x = 383,157.06 × 129,009.51
  4. Step 4: Simplify right side
    255,280.41x = 49,430,904,563.64
  5. Step 5: Solve for x
    x = 49,430,904,563.64/255,280.41
  6. Step 6: Final answer
    x = 193,633.76

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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.