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Finding the Fourth Proportional to 389,652.36, 584,501.28 and 109,191.48

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Solution

The fourth proportional to 389,652.36, 584,501.28 and 109,191.48 is: 163,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,652.36 : 584,501.28 = 109,191.48 : x
  2. Step 2: Convert to fraction form
    389,652.36/584,501.28 = 109,191.48/x
  3. Step 3: Cross multiply
    389,652.36x = 584,501.28 × 109,191.48
  4. Step 4: Simplify right side
    389,652.36x = 63,822,559,825.09
  5. Step 5: Solve for x
    x = 63,822,559,825.09/389,652.36
  6. Step 6: Final answer
    x = 163,793.59

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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.