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Finding the Fourth Proportional to 262,788.75, 362,648.48 and 143,556.75

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Solution

The fourth proportional to 262,788.75, 362,648.48 and 143,556.75 is: 198,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,788.75 : 362,648.48 = 143,556.75 : x
  2. Step 2: Convert to fraction form
    262,788.75/362,648.48 = 143,556.75/x
  3. Step 3: Cross multiply
    262,788.75x = 362,648.48 × 143,556.75
  4. Step 4: Simplify right side
    262,788.75x = 52,060,636,463.46
  5. Step 5: Solve for x
    x = 52,060,636,463.46/262,788.75
  6. Step 6: Final answer
    x = 198,108.32

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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.