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Finding the Fourth Proportional to 386,047.79, 579,148.25 and 119,796.94

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Solution

The fourth proportional to 386,047.79, 579,148.25 and 119,796.94 is: 179,719.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,047.79 : 579,148.25 = 119,796.94 : x
  2. Step 2: Convert to fraction form
    386,047.79/579,148.25 = 119,796.94/x
  3. Step 3: Cross multiply
    386,047.79x = 579,148.25 × 119,796.94
  4. Step 4: Simplify right side
    386,047.79x = 69,380,188,281.31
  5. Step 5: Solve for x
    x = 69,380,188,281.31/386,047.79
  6. Step 6: Final answer
    x = 179,719.17

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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.