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Finding the Fourth Proportional to 439,660.98, 659,048.40 and 173,318.40

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Solution

The fourth proportional to 439,660.98, 659,048.40 and 173,318.40 is: 259,802.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,660.98 : 659,048.40 = 173,318.40 : x
  2. Step 2: Convert to fraction form
    439,660.98/659,048.40 = 173,318.40/x
  3. Step 3: Cross multiply
    439,660.98x = 659,048.40 × 173,318.40
  4. Step 4: Simplify right side
    439,660.98x = 114,225,214,210.56
  5. Step 5: Solve for x
    x = 114,225,214,210.56/439,660.98
  6. Step 6: Final answer
    x = 259,802.94

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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.