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Finding the Fourth Proportional to 255,597.20, 383,107.80 and 122,541.20

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Solution

The fourth proportional to 255,597.20, 383,107.80 and 122,541.20 is: 183,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,597.20 : 383,107.80 = 122,541.20 : x
  2. Step 2: Convert to fraction form
    255,597.20/383,107.80 = 122,541.20/x
  3. Step 3: Cross multiply
    255,597.20x = 383,107.80 × 122,541.20
  4. Step 4: Simplify right side
    255,597.20x = 46,946,489,541.36
  5. Step 5: Solve for x
    x = 46,946,489,541.36/255,597.20
  6. Step 6: Final answer
    x = 183,673.72

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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.