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Finding the Fourth Proportional to 210,006.75, 314,911.59 and 76,793.85

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Solution

The fourth proportional to 210,006.75, 314,911.59 and 76,793.85 is: 115,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,006.75 : 314,911.59 = 76,793.85 : x
  2. Step 2: Convert to fraction form
    210,006.75/314,911.59 = 76,793.85/x
  3. Step 3: Cross multiply
    210,006.75x = 314,911.59 × 76,793.85
  4. Step 4: Simplify right side
    210,006.75x = 24,183,273,405.72
  5. Step 5: Solve for x
    x = 24,183,273,405.72/210,006.75
  6. Step 6: Final answer
    x = 115,154.74

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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.