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Finding the Fourth Proportional to 172,152.35, 258,243.40 and 47,493.35

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Solution

The fourth proportional to 172,152.35, 258,243.40 and 47,493.35 is: 71,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,152.35 : 258,243.40 = 47,493.35 : x
  2. Step 2: Convert to fraction form
    172,152.35/258,243.40 = 47,493.35/x
  3. Step 3: Cross multiply
    172,152.35x = 258,243.40 × 47,493.35
  4. Step 4: Simplify right side
    172,152.35x = 12,264,844,181.39
  5. Step 5: Solve for x
    x = 12,264,844,181.39/172,152.35
  6. Step 6: Final answer
    x = 71,244.13

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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.