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Finding the Fourth Proportional to 448,260.31, 672,448.77 and 163,906.57

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Solution

The fourth proportional to 448,260.31, 672,448.77 and 163,906.57 is: 245,881.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,260.31 : 672,448.77 = 163,906.57 : x
  2. Step 2: Convert to fraction form
    448,260.31/672,448.77 = 163,906.57/x
  3. Step 3: Cross multiply
    448,260.31x = 672,448.77 × 163,906.57
  4. Step 4: Simplify right side
    448,260.31x = 110,218,771,391.42
  5. Step 5: Solve for x
    x = 110,218,771,391.42/448,260.31
  6. Step 6: Final answer
    x = 245,881.17

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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.