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Finding the Fourth Proportional to 402,265.45, 603,529.26 and 191,876.05

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Solution

The fourth proportional to 402,265.45, 603,529.26 and 191,876.05 is: 287,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,265.45 : 603,529.26 = 191,876.05 : x
  2. Step 2: Convert to fraction form
    402,265.45/603,529.26 = 191,876.05/x
  3. Step 3: Cross multiply
    402,265.45x = 603,529.26 × 191,876.05
  4. Step 4: Simplify right side
    402,265.45x = 115,802,810,468.22
  5. Step 5: Solve for x
    x = 115,802,810,468.22/402,265.45
  6. Step 6: Final answer
    x = 287,876.60

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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.