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Finding the Fourth Proportional to 338,764.84, 508,147.26 and 89,449

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Solution

The fourth proportional to 338,764.84, 508,147.26 and 89,449 is: 134,173.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,764.84 : 508,147.26 = 89,449 : x
  2. Step 2: Convert to fraction form
    338,764.84/508,147.26 = 89,449/x
  3. Step 3: Cross multiply
    338,764.84x = 508,147.26 × 89,449
  4. Step 4: Simplify right side
    338,764.84x = 45,453,264,259.74
  5. Step 5: Solve for x
    x = 45,453,264,259.74/338,764.84
  6. Step 6: Final answer
    x = 134,173.50

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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.