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Finding the Fourth Proportional to 439,373.71, 659,054.41 and 173,136.54

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Solution

The fourth proportional to 439,373.71, 659,054.41 and 173,136.54 is: 259,702.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,373.71 : 659,054.41 = 173,136.54 : x
  2. Step 2: Convert to fraction form
    439,373.71/659,054.41 = 173,136.54/x
  3. Step 3: Cross multiply
    439,373.71x = 659,054.41 × 173,136.54
  4. Step 4: Simplify right side
    439,373.71x = 114,106,400,219.14
  5. Step 5: Solve for x
    x = 114,106,400,219.14/439,373.71
  6. Step 6: Final answer
    x = 259,702.38

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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.