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Finding the Fourth Proportional to 402,163.99, 602,327.34 and 191,949.55

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Solution

The fourth proportional to 402,163.99, 602,327.34 and 191,949.55 is: 287,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,163.99 : 602,327.34 = 191,949.55 : x
  2. Step 2: Convert to fraction form
    402,163.99/602,327.34 = 191,949.55/x
  3. Step 3: Cross multiply
    402,163.99x = 602,327.34 × 191,949.55
  4. Step 4: Simplify right side
    402,163.99x = 115,616,460,359.88
  5. Step 5: Solve for x
    x = 115,616,460,359.88/402,163.99
  6. Step 6: Final answer
    x = 287,485.86

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1.5x scale

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.