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Finding the Fourth Proportional to 201,660.60, 301,730.87 and 120,306.77

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Solution

The fourth proportional to 201,660.60, 301,730.87 and 120,306.77 is: 180,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,660.60 : 301,730.87 = 120,306.77 : x
  2. Step 2: Convert to fraction form
    201,660.60/301,730.87 = 120,306.77/x
  3. Step 3: Cross multiply
    201,660.60x = 301,730.87 × 120,306.77
  4. Step 4: Simplify right side
    201,660.60x = 36,300,264,870.34
  5. Step 5: Solve for x
    x = 36,300,264,870.34/201,660.60
  6. Step 6: Final answer
    x = 180,006.73

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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.