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Finding the Fourth Proportional to 253,044.96, 379,625.04 and 86,822.88

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Solution

The fourth proportional to 253,044.96, 379,625.04 and 86,822.88 is: 130,254.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,044.96 : 379,625.04 = 86,822.88 : x
  2. Step 2: Convert to fraction form
    253,044.96/379,625.04 = 86,822.88/x
  3. Step 3: Cross multiply
    253,044.96x = 379,625.04 × 86,822.88
  4. Step 4: Simplify right side
    253,044.96x = 32,960,139,292.92
  5. Step 5: Solve for x
    x = 32,960,139,292.92/253,044.96
  6. Step 6: Final answer
    x = 130,254.08

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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.