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Finding the Fourth Proportional to 255,807.58, 383,977.51 and 188,415.71

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Solution

The fourth proportional to 255,807.58, 383,977.51 and 188,415.71 is: 282,819.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,807.58 : 383,977.51 = 188,415.71 : x
  2. Step 2: Convert to fraction form
    255,807.58/383,977.51 = 188,415.71/x
  3. Step 3: Cross multiply
    255,807.58x = 383,977.51 × 188,415.71
  4. Step 4: Simplify right side
    255,807.58x = 72,347,395,999.47
  5. Step 5: Solve for x
    x = 72,347,395,999.47/255,807.58
  6. Step 6: Final answer
    x = 282,819.59

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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.