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Finding the Fourth Proportional to 254,013.79, 380,972.11 and 127,619.01

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Solution

The fourth proportional to 254,013.79, 380,972.11 and 127,619.01 is: 191,404.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,013.79 : 380,972.11 = 127,619.01 : x
  2. Step 2: Convert to fraction form
    254,013.79/380,972.11 = 127,619.01/x
  3. Step 3: Cross multiply
    254,013.79x = 380,972.11 × 127,619.01
  4. Step 4: Simplify right side
    254,013.79x = 48,619,283,515.81
  5. Step 5: Solve for x
    x = 48,619,283,515.81/254,013.79
  6. Step 6: Final answer
    x = 191,404.11

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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.