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Finding the Fourth Proportional to 172,817.44, 258,828.72 and 144,227.68

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Solution

The fourth proportional to 172,817.44, 258,828.72 and 144,227.68 is: 216,009.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,817.44 : 258,828.72 = 144,227.68 : x
  2. Step 2: Convert to fraction form
    172,817.44/258,828.72 = 144,227.68/x
  3. Step 3: Cross multiply
    172,817.44x = 258,828.72 × 144,227.68
  4. Step 4: Simplify right side
    172,817.44x = 37,330,265,802.97
  5. Step 5: Solve for x
    x = 37,330,265,802.97/172,817.44
  6. Step 6: Final answer
    x = 216,009.83

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1.5x scale

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.