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Finding the Fourth Proportional to 216,665.81, 325,035.02 and 74,505.34

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Solution

The fourth proportional to 216,665.81, 325,035.02 and 74,505.34 is: 111,770.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,665.81 : 325,035.02 = 74,505.34 : x
  2. Step 2: Convert to fraction form
    216,665.81/325,035.02 = 74,505.34/x
  3. Step 3: Cross multiply
    216,665.81x = 325,035.02 × 74,505.34
  4. Step 4: Simplify right side
    216,665.81x = 24,216,843,491.89
  5. Step 5: Solve for x
    x = 24,216,843,491.89/216,665.81
  6. Step 6: Final answer
    x = 111,770.49

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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.