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Finding the Fourth Proportional to 205,555.02, 308,266.92 and 65,280.84

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Solution

The fourth proportional to 205,555.02, 308,266.92 and 65,280.84 is: 97,900.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,555.02 : 308,266.92 = 65,280.84 : x
  2. Step 2: Convert to fraction form
    205,555.02/308,266.92 = 65,280.84/x
  3. Step 3: Cross multiply
    205,555.02x = 308,266.92 × 65,280.84
  4. Step 4: Simplify right side
    205,555.02x = 20,123,923,481.81
  5. Step 5: Solve for x
    x = 20,123,923,481.81/205,555.02
  6. Step 6: Final answer
    x = 97,900.42

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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.