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Finding the Fourth Proportional to 209,300.90, 313,951.26 and 61,556.90

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Solution

The fourth proportional to 209,300.90, 313,951.26 and 61,556.90 is: 92,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,300.90 : 313,951.26 = 61,556.90 : x
  2. Step 2: Convert to fraction form
    209,300.90/313,951.26 = 61,556.90/x
  3. Step 3: Cross multiply
    209,300.90x = 313,951.26 × 61,556.90
  4. Step 4: Simplify right side
    209,300.90x = 19,325,866,316.69
  5. Step 5: Solve for x
    x = 19,325,866,316.69/209,300.90
  6. Step 6: Final answer
    x = 92,335.32

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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.