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Finding the Fourth Proportional to 389,494.48, 537,527.46 and 219,724.96

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Solution

The fourth proportional to 389,494.48, 537,527.46 and 219,724.96 is: 303,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,494.48 : 537,527.46 = 219,724.96 : x
  2. Step 2: Convert to fraction form
    389,494.48/537,527.46 = 219,724.96/x
  3. Step 3: Cross multiply
    389,494.48x = 537,527.46 × 219,724.96
  4. Step 4: Simplify right side
    389,494.48x = 118,108,199,647.40
  5. Step 5: Solve for x
    x = 118,108,199,647.40/389,494.48
  6. Step 6: Final answer
    x = 303,234.59

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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.