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Finding the Fourth Proportional to 200,040.80, 300,061.20 and 185,460.80

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Solution

The fourth proportional to 200,040.80, 300,061.20 and 185,460.80 is: 278,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,040.80 : 300,061.20 = 185,460.80 : x
  2. Step 2: Convert to fraction form
    200,040.80/300,061.20 = 185,460.80/x
  3. Step 3: Cross multiply
    200,040.80x = 300,061.20 × 185,460.80
  4. Step 4: Simplify right side
    200,040.80x = 55,649,590,200.96
  5. Step 5: Solve for x
    x = 55,649,590,200.96/200,040.80
  6. Step 6: Final answer
    x = 278,191.20

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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.