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Finding the Fourth Proportional to 215,099.70, 322,791.69 and 101,280.07

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Solution

The fourth proportional to 215,099.70, 322,791.69 and 101,280.07 is: 151,987.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,099.70 : 322,791.69 = 101,280.07 : x
  2. Step 2: Convert to fraction form
    215,099.70/322,791.69 = 101,280.07/x
  3. Step 3: Cross multiply
    215,099.70x = 322,791.69 × 101,280.07
  4. Step 4: Simplify right side
    215,099.70x = 32,692,364,151.64
  5. Step 5: Solve for x
    x = 32,692,364,151.64/215,099.70
  6. Step 6: Final answer
    x = 151,987.03

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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.