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Finding the Fourth Proportional to 275,486.80, 413,230.20 and 97,999.60

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Solution

The fourth proportional to 275,486.80, 413,230.20 and 97,999.60 is: 146,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,486.80 : 413,230.20 = 97,999.60 : x
  2. Step 2: Convert to fraction form
    275,486.80/413,230.20 = 97,999.60/x
  3. Step 3: Cross multiply
    275,486.80x = 413,230.20 × 97,999.60
  4. Step 4: Simplify right side
    275,486.80x = 40,496,394,307.92
  5. Step 5: Solve for x
    x = 40,496,394,307.92/275,486.80
  6. Step 6: Final answer
    x = 146,999.40

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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.