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Finding the Fourth Proportional to 311,985.51, 467,978.28 and 101,623.44

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Solution

The fourth proportional to 311,985.51, 467,978.28 and 101,623.44 is: 152,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,985.51 : 467,978.28 = 101,623.44 : x
  2. Step 2: Convert to fraction form
    311,985.51/467,978.28 = 101,623.44/x
  3. Step 3: Cross multiply
    311,985.51x = 467,978.28 × 101,623.44
  4. Step 4: Simplify right side
    311,985.51x = 47,557,562,658.88
  5. Step 5: Solve for x
    x = 47,557,562,658.88/311,985.51
  6. Step 6: Final answer
    x = 152,435.16

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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.