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Finding the Fourth Proportional to 550,560.83, 825,595.20 and 213,489.45

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Solution

The fourth proportional to 550,560.83, 825,595.20 and 213,489.45 is: 320,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,560.83 : 825,595.20 = 213,489.45 : x
  2. Step 2: Convert to fraction form
    550,560.83/825,595.20 = 213,489.45/x
  3. Step 3: Cross multiply
    550,560.83x = 825,595.20 × 213,489.45
  4. Step 4: Simplify right side
    550,560.83x = 176,255,865,170.64
  5. Step 5: Solve for x
    x = 176,255,865,170.64/550,560.83
  6. Step 6: Final answer
    x = 320,138.77

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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.