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Finding the Fourth Proportional to 389,007.12, 583,609.08 and 108,524.16

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Solution

The fourth proportional to 389,007.12, 583,609.08 and 108,524.16 is: 162,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,007.12 : 583,609.08 = 108,524.16 : x
  2. Step 2: Convert to fraction form
    389,007.12/583,609.08 = 108,524.16/x
  3. Step 3: Cross multiply
    389,007.12x = 583,609.08 × 108,524.16
  4. Step 4: Simplify right side
    389,007.12x = 63,335,685,175.37
  5. Step 5: Solve for x
    x = 63,335,685,175.37/389,007.12
  6. Step 6: Final answer
    x = 162,813.69

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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.