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Finding the Fourth Proportional to 479,135.30, 719,178.48 and 254,497.59

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Solution

The fourth proportional to 479,135.30, 719,178.48 and 254,497.59 is: 381,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,135.30 : 719,178.48 = 254,497.59 : x
  2. Step 2: Convert to fraction form
    479,135.30/719,178.48 = 254,497.59/x
  3. Step 3: Cross multiply
    479,135.30x = 719,178.48 × 254,497.59
  4. Step 4: Simplify right side
    479,135.30x = 183,029,189,939.86
  5. Step 5: Solve for x
    x = 183,029,189,939.86/479,135.30
  6. Step 6: Final answer
    x = 381,998.97

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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.