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Finding the Fourth Proportional to 254,001.41, 380,735.39 and 85,463.22

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Solution

The fourth proportional to 254,001.41, 380,735.39 and 85,463.22 is: 128,105.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,001.41 : 380,735.39 = 85,463.22 : x
  2. Step 2: Convert to fraction form
    254,001.41/380,735.39 = 85,463.22/x
  3. Step 3: Cross multiply
    254,001.41x = 380,735.39 × 85,463.22
  4. Step 4: Simplify right side
    254,001.41x = 32,538,871,970.04
  5. Step 5: Solve for x
    x = 32,538,871,970.04/254,001.41
  6. Step 6: Final answer
    x = 128,105.09

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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.