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Finding the Fourth Proportional to 452,578.50, 678,955.17 and 172,073.94

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Solution

The fourth proportional to 452,578.50, 678,955.17 and 172,073.94 is: 258,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,578.50 : 678,955.17 = 172,073.94 : x
  2. Step 2: Convert to fraction form
    452,578.50/678,955.17 = 172,073.94/x
  3. Step 3: Cross multiply
    452,578.50x = 678,955.17 × 172,073.94
  4. Step 4: Simplify right side
    452,578.50x = 116,830,491,185.27
  5. Step 5: Solve for x
    x = 116,830,491,185.27/452,578.50
  6. Step 6: Final answer
    x = 258,144.15

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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.