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Finding the Fourth Proportional to 215,221.47, 322,675.47 and 101,329.80

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Solution

The fourth proportional to 215,221.47, 322,675.47 and 101,329.80 is: 151,920.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,221.47 : 322,675.47 = 101,329.80 : x
  2. Step 2: Convert to fraction form
    215,221.47/322,675.47 = 101,329.80/x
  3. Step 3: Cross multiply
    215,221.47x = 322,675.47 × 101,329.80
  4. Step 4: Simplify right side
    215,221.47x = 32,696,640,840.01
  5. Step 5: Solve for x
    x = 32,696,640,840.01/215,221.47
  6. Step 6: Final answer
    x = 151,920.91

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1.5x scale

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.