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Finding the Fourth Proportional to 542,709.45, 814,103.06 and 143,346.24

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Solution

The fourth proportional to 542,709.45, 814,103.06 and 143,346.24 is: 215,029.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,709.45 : 814,103.06 = 143,346.24 : x
  2. Step 2: Convert to fraction form
    542,709.45/814,103.06 = 143,346.24/x
  3. Step 3: Cross multiply
    542,709.45x = 814,103.06 × 143,346.24
  4. Step 4: Simplify right side
    542,709.45x = 116,698,611,906.76
  5. Step 5: Solve for x
    x = 116,698,611,906.76/542,709.45
  6. Step 6: Final answer
    x = 215,029.63

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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.