Home / 217,019.13-325,528.73-90,590.41

Finding the Fourth Proportional to 217,019.13, 325,528.73 and 90,590.41

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Solution

The fourth proportional to 217,019.13, 325,528.73 and 90,590.41 is: 135,885.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,019.13 : 325,528.73 = 90,590.41 : x
  2. Step 2: Convert to fraction form
    217,019.13/325,528.73 = 90,590.41/x
  3. Step 3: Cross multiply
    217,019.13x = 325,528.73 × 90,590.41
  4. Step 4: Simplify right side
    217,019.13x = 29,489,781,411.15
  5. Step 5: Solve for x
    x = 29,489,781,411.15/217,019.13
  6. Step 6: Final answer
    x = 135,885.63

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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.