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Finding the Fourth Proportional to 317,331.58, 476,121.84 and 139,714

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Solution

The fourth proportional to 317,331.58, 476,121.84 and 139,714 is: 209,625.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,331.58 : 476,121.84 = 139,714 : x
  2. Step 2: Convert to fraction form
    317,331.58/476,121.84 = 139,714/x
  3. Step 3: Cross multiply
    317,331.58x = 476,121.84 × 139,714
  4. Step 4: Simplify right side
    317,331.58x = 66,520,886,753.76
  5. Step 5: Solve for x
    x = 66,520,886,753.76/317,331.58
  6. Step 6: Final answer
    x = 209,625.80

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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.