Home / 216,566.46-324,905.06-90,164.70

Finding the Fourth Proportional to 216,566.46, 324,905.06 and 90,164.70

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Solution

The fourth proportional to 216,566.46, 324,905.06 and 90,164.70 is: 135,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,566.46 : 324,905.06 = 90,164.70 : x
  2. Step 2: Convert to fraction form
    216,566.46/324,905.06 = 90,164.70/x
  3. Step 3: Cross multiply
    216,566.46x = 324,905.06 × 90,164.70
  4. Step 4: Simplify right side
    216,566.46x = 29,294,967,263.38
  5. Step 5: Solve for x
    x = 29,294,967,263.38/216,566.46
  6. Step 6: Final answer
    x = 135,270.10

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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.