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Finding the Fourth Proportional to 384,776.60, 577,164.90 and 195,163.70

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Solution

The fourth proportional to 384,776.60, 577,164.90 and 195,163.70 is: 292,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,776.60 : 577,164.90 = 195,163.70 : x
  2. Step 2: Convert to fraction form
    384,776.60/577,164.90 = 195,163.70/x
  3. Step 3: Cross multiply
    384,776.60x = 577,164.90 × 195,163.70
  4. Step 4: Simplify right side
    384,776.60x = 112,641,637,394.13
  5. Step 5: Solve for x
    x = 112,641,637,394.13/384,776.60
  6. Step 6: Final answer
    x = 292,745.55

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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.