Home / 215,163.16-322,495.29-190,251.86

Finding the Fourth Proportional to 215,163.16, 322,495.29 and 190,251.86

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Solution

The fourth proportional to 215,163.16, 322,495.29 and 190,251.86 is: 285,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,163.16 : 322,495.29 = 190,251.86 : x
  2. Step 2: Convert to fraction form
    215,163.16/322,495.29 = 190,251.86/x
  3. Step 3: Cross multiply
    215,163.16x = 322,495.29 × 190,251.86
  4. Step 4: Simplify right side
    215,163.16x = 61,355,328,763.74
  5. Step 5: Solve for x
    x = 61,355,328,763.74/215,163.16
  6. Step 6: Final answer
    x = 285,157.22

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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.