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Finding the Fourth Proportional to 311,580.90, 467,371.35 and 311,580.90

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Solution

The fourth proportional to 311,580.90, 467,371.35 and 311,580.90 is: 467,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,580.90 : 467,371.35 = 311,580.90 : x
  2. Step 2: Convert to fraction form
    311,580.90/467,371.35 = 311,580.90/x
  3. Step 3: Cross multiply
    311,580.90x = 467,371.35 × 311,580.90
  4. Step 4: Simplify right side
    311,580.90x = 145,623,985,867.22
  5. Step 5: Solve for x
    x = 145,623,985,867.22/311,580.90
  6. Step 6: Final answer
    x = 467,371.35

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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.