Home / 215,032.16-322,552.67-78,250.58

Finding the Fourth Proportional to 215,032.16, 322,552.67 and 78,250.58

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Solution

The fourth proportional to 215,032.16, 322,552.67 and 78,250.58 is: 117,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,032.16 : 322,552.67 = 78,250.58 : x
  2. Step 2: Convert to fraction form
    215,032.16/322,552.67 = 78,250.58/x
  3. Step 3: Cross multiply
    215,032.16x = 322,552.67 × 78,250.58
  4. Step 4: Simplify right side
    215,032.16x = 25,239,931,504.03
  5. Step 5: Solve for x
    x = 25,239,931,504.03/215,032.16
  6. Step 6: Final answer
    x = 117,377.48

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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.