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Finding the Fourth Proportional to 275,808.60, 413,615.70 and 98,321.40

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Solution

The fourth proportional to 275,808.60, 413,615.70 and 98,321.40 is: 147,447.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,808.60 : 413,615.70 = 98,321.40 : x
  2. Step 2: Convert to fraction form
    275,808.60/413,615.70 = 98,321.40/x
  3. Step 3: Cross multiply
    275,808.60x = 413,615.70 × 98,321.40
  4. Step 4: Simplify right side
    275,808.60x = 40,667,274,685.98
  5. Step 5: Solve for x
    x = 40,667,274,685.98/275,808.60
  6. Step 6: Final answer
    x = 147,447.45

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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.