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Finding the Fourth Proportional to 265,489.88, 366,017.82 and 257,234.36

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Solution

The fourth proportional to 265,489.88, 366,017.82 and 257,234.36 is: 354,636.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,489.88 : 366,017.82 = 257,234.36 : x
  2. Step 2: Convert to fraction form
    265,489.88/366,017.82 = 257,234.36/x
  3. Step 3: Cross multiply
    265,489.88x = 366,017.82 × 257,234.36
  4. Step 4: Simplify right side
    265,489.88x = 94,152,359,676.30
  5. Step 5: Solve for x
    x = 94,152,359,676.30/265,489.88
  6. Step 6: Final answer
    x = 354,636.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.