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Finding the Fourth Proportional to 255,720.64, 353,045.68 and 227,347.80

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Solution

The fourth proportional to 255,720.64, 353,045.68 and 227,347.80 is: 313,874.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,720.64 : 353,045.68 = 227,347.80 : x
  2. Step 2: Convert to fraction form
    255,720.64/353,045.68 = 227,347.80/x
  3. Step 3: Cross multiply
    255,720.64x = 353,045.68 × 227,347.80
  4. Step 4: Simplify right side
    255,720.64x = 80,264,159,414.33
  5. Step 5: Solve for x
    x = 80,264,159,414.33/255,720.64
  6. Step 6: Final answer
    x = 313,874.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.