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Finding the Fourth Proportional to 255,595.70, 383,105.55 and 122,539.70

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Solution

The fourth proportional to 255,595.70, 383,105.55 and 122,539.70 is: 183,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,595.70 : 383,105.55 = 122,539.70 : x
  2. Step 2: Convert to fraction form
    255,595.70/383,105.55 = 122,539.70/x
  3. Step 3: Cross multiply
    255,595.70x = 383,105.55 × 122,539.70
  4. Step 4: Simplify right side
    255,595.70x = 46,945,639,165.34
  5. Step 5: Solve for x
    x = 46,945,639,165.34/255,595.70
  6. Step 6: Final answer
    x = 183,671.47

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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.