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Finding the Fourth Proportional to 489,229, 734,075.40 and 236,367.74

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Solution

The fourth proportional to 489,229, 734,075.40 and 236,367.74 is: 354,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,229 : 734,075.40 = 236,367.74 : x
  2. Step 2: Convert to fraction form
    489,229/734,075.40 = 236,367.74/x
  3. Step 3: Cross multiply
    489,229x = 734,075.40 × 236,367.74
  4. Step 4: Simplify right side
    489,229x = 173,511,743,287.60
  5. Step 5: Solve for x
    x = 173,511,743,287.60/489,229
  6. Step 6: Final answer
    x = 354,663.65

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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.