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Finding the Fourth Proportional to 327,327.78, 490,774.17 and 127,666.83

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Solution

The fourth proportional to 327,327.78, 490,774.17 and 127,666.83 is: 191,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,327.78 : 490,774.17 = 127,666.83 : x
  2. Step 2: Convert to fraction form
    327,327.78/490,774.17 = 127,666.83/x
  3. Step 3: Cross multiply
    327,327.78x = 490,774.17 × 127,666.83
  4. Step 4: Simplify right side
    327,327.78x = 62,655,582,529.78
  5. Step 5: Solve for x
    x = 62,655,582,529.78/327,327.78
  6. Step 6: Final answer
    x = 191,415.41

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1.5x scale

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.