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Finding the Fourth Proportional to 439,486, 658,838.04 and 158,940.88

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Solution

The fourth proportional to 439,486, 658,838.04 and 158,940.88 is: 238,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,486 : 658,838.04 = 158,940.88 : x
  2. Step 2: Convert to fraction form
    439,486/658,838.04 = 158,940.88/x
  3. Step 3: Cross multiply
    439,486x = 658,838.04 × 158,940.88
  4. Step 4: Simplify right side
    439,486x = 104,716,297,855.08
  5. Step 5: Solve for x
    x = 104,716,297,855.08/439,486
  6. Step 6: Final answer
    x = 238,269.93

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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.