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Finding the Fourth Proportional to 251,482.36, 377,213.73 and 85,270.36

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Solution

The fourth proportional to 251,482.36, 377,213.73 and 85,270.36 is: 127,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,482.36 : 377,213.73 = 85,270.36 : x
  2. Step 2: Convert to fraction form
    251,482.36/377,213.73 = 85,270.36/x
  3. Step 3: Cross multiply
    251,482.36x = 377,213.73 × 85,270.36
  4. Step 4: Simplify right side
    251,482.36x = 32,165,150,554.04
  5. Step 5: Solve for x
    x = 32,165,150,554.04/251,482.36
  6. Step 6: Final answer
    x = 127,902.21

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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.