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Finding the Fourth Proportional to 275,485.80, 413,228.70 and 97,998.60

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Solution

The fourth proportional to 275,485.80, 413,228.70 and 97,998.60 is: 146,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,485.80 : 413,228.70 = 97,998.60 : x
  2. Step 2: Convert to fraction form
    275,485.80/413,228.70 = 97,998.60/x
  3. Step 3: Cross multiply
    275,485.80x = 413,228.70 × 97,998.60
  4. Step 4: Simplify right side
    275,485.80x = 40,495,834,079.82
  5. Step 5: Solve for x
    x = 40,495,834,079.82/275,485.80
  6. Step 6: Final answer
    x = 146,997.90

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Similar ratio
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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.