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Finding the Fourth Proportional to 200,035.80, 300,053.70 and 185,455.80

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Solution

The fourth proportional to 200,035.80, 300,053.70 and 185,455.80 is: 278,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,035.80 : 300,053.70 = 185,455.80 : x
  2. Step 2: Convert to fraction form
    200,035.80/300,053.70 = 185,455.80/x
  3. Step 3: Cross multiply
    200,035.80x = 300,053.70 × 185,455.80
  4. Step 4: Simplify right side
    200,035.80x = 55,646,698,976.46
  5. Step 5: Solve for x
    x = 55,646,698,976.46/200,035.80
  6. Step 6: Final answer
    x = 278,183.70

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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.