Home / 209,421.56-313,946.40-76,277

Finding the Fourth Proportional to 209,421.56, 313,946.40 and 76,277

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Solution

The fourth proportional to 209,421.56, 313,946.40 and 76,277 is: 114,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,421.56 : 313,946.40 = 76,277 : x
  2. Step 2: Convert to fraction form
    209,421.56/313,946.40 = 76,277/x
  3. Step 3: Cross multiply
    209,421.56x = 313,946.40 × 76,277
  4. Step 4: Simplify right side
    209,421.56x = 23,946,889,552.80
  5. Step 5: Solve for x
    x = 23,946,889,552.80/209,421.56
  6. Step 6: Final answer
    x = 114,347.78

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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.