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Finding the Fourth Proportional to 505,909.80, 758,907.90 and 173,485.80

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Solution

The fourth proportional to 505,909.80, 758,907.90 and 173,485.80 is: 260,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,909.80 : 758,907.90 = 173,485.80 : x
  2. Step 2: Convert to fraction form
    505,909.80/758,907.90 = 173,485.80/x
  3. Step 3: Cross multiply
    505,909.80x = 758,907.90 × 173,485.80
  4. Step 4: Simplify right side
    505,909.80x = 131,659,744,157.82
  5. Step 5: Solve for x
    x = 131,659,744,157.82/505,909.80
  6. Step 6: Final answer
    x = 260,243.51

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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.