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Finding the Fourth Proportional to 448,292.29, 672,072.00 and 208,555.63

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Solution

The fourth proportional to 448,292.29, 672,072.00 and 208,555.63 is: 312,662.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,292.29 : 672,072.00 = 208,555.63 : x
  2. Step 2: Convert to fraction form
    448,292.29/672,072.00 = 208,555.63/x
  3. Step 3: Cross multiply
    448,292.29x = 672,072.00 × 208,555.63
  4. Step 4: Simplify right side
    448,292.29x = 140,164,397,163.79
  5. Step 5: Solve for x
    x = 140,164,397,163.79/448,292.29
  6. Step 6: Final answer
    x = 312,662.97

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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.