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Finding the Fourth Proportional to 389,358.97, 584,072.47 and 108,877.03

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Solution

The fourth proportional to 389,358.97, 584,072.47 and 108,877.03 is: 163,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,358.97 : 584,072.47 = 108,877.03 : x
  2. Step 2: Convert to fraction form
    389,358.97/584,072.47 = 108,877.03/x
  3. Step 3: Cross multiply
    389,358.97x = 584,072.47 × 108,877.03
  4. Step 4: Simplify right side
    389,358.97x = 63,592,074,514.28
  5. Step 5: Solve for x
    x = 63,592,074,514.28/389,358.97
  6. Step 6: Final answer
    x = 163,325.05

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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.