Home / 216,890.56-325,226.70-90,498.04

Finding the Fourth Proportional to 216,890.56, 325,226.70 and 90,498.04

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Solution

The fourth proportional to 216,890.56, 325,226.70 and 90,498.04 is: 135,701.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,890.56 : 325,226.70 = 90,498.04 : x
  2. Step 2: Convert to fraction form
    216,890.56/325,226.70 = 90,498.04/x
  3. Step 3: Cross multiply
    216,890.56x = 325,226.70 × 90,498.04
  4. Step 4: Simplify right side
    216,890.56x = 29,432,378,905.67
  5. Step 5: Solve for x
    x = 29,432,378,905.67/216,890.56
  6. Step 6: Final answer
    x = 135,701.52

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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.