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Finding the Fourth Proportional to 321,252.40, 481,878.60 and 171,953.20

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Solution

The fourth proportional to 321,252.40, 481,878.60 and 171,953.20 is: 257,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,252.40 : 481,878.60 = 171,953.20 : x
  2. Step 2: Convert to fraction form
    321,252.40/481,878.60 = 171,953.20/x
  3. Step 3: Cross multiply
    321,252.40x = 481,878.60 × 171,953.20
  4. Step 4: Simplify right side
    321,252.40x = 82,860,567,281.52
  5. Step 5: Solve for x
    x = 82,860,567,281.52/321,252.40
  6. Step 6: Final answer
    x = 257,929.80

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1.5x scale

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.