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Finding the Fourth Proportional to 255,403.33, 383,126.96 and 65,861.98

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Solution

The fourth proportional to 255,403.33, 383,126.96 and 65,861.98 is: 98,798.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,403.33 : 383,126.96 = 65,861.98 : x
  2. Step 2: Convert to fraction form
    255,403.33/383,126.96 = 65,861.98/x
  3. Step 3: Cross multiply
    255,403.33x = 383,126.96 × 65,861.98
  4. Step 4: Simplify right side
    255,403.33x = 25,233,499,383.82
  5. Step 5: Solve for x
    x = 25,233,499,383.82/255,403.33
  6. Step 6: Final answer
    x = 98,798.63

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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.