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Finding the Fourth Proportional to 209,401.80, 314,102.70 and 150,790.20

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Solution

The fourth proportional to 209,401.80, 314,102.70 and 150,790.20 is: 226,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,401.80 : 314,102.70 = 150,790.20 : x
  2. Step 2: Convert to fraction form
    209,401.80/314,102.70 = 150,790.20/x
  3. Step 3: Cross multiply
    209,401.80x = 314,102.70 × 150,790.20
  4. Step 4: Simplify right side
    209,401.80x = 47,363,608,953.54
  5. Step 5: Solve for x
    x = 47,363,608,953.54/209,401.80
  6. Step 6: Final answer
    x = 226,185.30

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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.