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Finding the Fourth Proportional to 251,878.62, 377,817.48 and 172,752.96

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Solution

The fourth proportional to 251,878.62, 377,817.48 and 172,752.96 is: 259,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,878.62 : 377,817.48 = 172,752.96 : x
  2. Step 2: Convert to fraction form
    251,878.62/377,817.48 = 172,752.96/x
  3. Step 3: Cross multiply
    251,878.62x = 377,817.48 × 172,752.96
  4. Step 4: Simplify right side
    251,878.62x = 65,269,088,009.74
  5. Step 5: Solve for x
    x = 65,269,088,009.74/251,878.62
  6. Step 6: Final answer
    x = 259,129.13

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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.