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Finding the Fourth Proportional to 255,868.52, 383,534.66 and 143,383.82

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Solution

The fourth proportional to 255,868.52, 383,534.66 and 143,383.82 is: 214,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,868.52 : 383,534.66 = 143,383.82 : x
  2. Step 2: Convert to fraction form
    255,868.52/383,534.66 = 143,383.82/x
  3. Step 3: Cross multiply
    255,868.52x = 383,534.66 × 143,383.82
  4. Step 4: Simplify right side
    255,868.52x = 54,992,664,653.20
  5. Step 5: Solve for x
    x = 54,992,664,653.20/255,868.52
  6. Step 6: Final answer
    x = 214,925.48

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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.