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Finding the Fourth Proportional to 299,365.19, 448,809.27 and 172,861.93

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Solution

The fourth proportional to 299,365.19, 448,809.27 and 172,861.93 is: 259,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,365.19 : 448,809.27 = 172,861.93 : x
  2. Step 2: Convert to fraction form
    299,365.19/448,809.27 = 172,861.93/x
  3. Step 3: Cross multiply
    299,365.19x = 448,809.27 × 172,861.93
  4. Step 4: Simplify right side
    299,365.19x = 77,582,036,614.09
  5. Step 5: Solve for x
    x = 77,582,036,614.09/299,365.19
  6. Step 6: Final answer
    x = 259,155.17

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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.