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Finding the Fourth Proportional to 275,328.60, 412,992.90 and 97,853.55

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Solution

The fourth proportional to 275,328.60, 412,992.90 and 97,853.55 is: 146,780.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,328.60 : 412,992.90 = 97,853.55 : x
  2. Step 2: Convert to fraction form
    275,328.60/412,992.90 = 97,853.55/x
  3. Step 3: Cross multiply
    275,328.60x = 412,992.90 × 97,853.55
  4. Step 4: Simplify right side
    275,328.60x = 40,412,821,389.80
  5. Step 5: Solve for x
    x = 40,412,821,389.80/275,328.60
  6. Step 6: Final answer
    x = 146,780.33

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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.