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Finding the Fourth Proportional to 403,141.70, 604,676.10 and 136,910.90

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Solution

The fourth proportional to 403,141.70, 604,676.10 and 136,910.90 is: 205,353.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,141.70 : 604,676.10 = 136,910.90 : x
  2. Step 2: Convert to fraction form
    403,141.70/604,676.10 = 136,910.90/x
  3. Step 3: Cross multiply
    403,141.70x = 604,676.10 × 136,910.90
  4. Step 4: Simplify right side
    403,141.70x = 82,786,749,059.49
  5. Step 5: Solve for x
    x = 82,786,749,059.49/403,141.70
  6. Step 6: Final answer
    x = 205,353.97

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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.