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Finding the Fourth Proportional to 273,104.80, 409,657.20 and 161,130.40

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Solution

The fourth proportional to 273,104.80, 409,657.20 and 161,130.40 is: 241,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,104.80 : 409,657.20 = 161,130.40 : x
  2. Step 2: Convert to fraction form
    273,104.80/409,657.20 = 161,130.40/x
  3. Step 3: Cross multiply
    273,104.80x = 409,657.20 × 161,130.40
  4. Step 4: Simplify right side
    273,104.80x = 66,008,228,498.88
  5. Step 5: Solve for x
    x = 66,008,228,498.88/273,104.80
  6. Step 6: Final answer
    x = 241,695.60

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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.