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Finding the Fourth Proportional to 331,855.60, 497,783.40 and 272,806.60

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Solution

The fourth proportional to 331,855.60, 497,783.40 and 272,806.60 is: 409,209.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,855.60 : 497,783.40 = 272,806.60 : x
  2. Step 2: Convert to fraction form
    331,855.60/497,783.40 = 272,806.60/x
  3. Step 3: Cross multiply
    331,855.60x = 497,783.40 × 272,806.60
  4. Step 4: Simplify right side
    331,855.60x = 135,798,596,890.44
  5. Step 5: Solve for x
    x = 135,798,596,890.44/331,855.60
  6. Step 6: Final answer
    x = 409,209.90

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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.