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Finding the Fourth Proportional to 505,290.87, 758,031.08 and 168,351.93

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Solution

The fourth proportional to 505,290.87, 758,031.08 and 168,351.93 is: 252,559.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,290.87 : 758,031.08 = 168,351.93 : x
  2. Step 2: Convert to fraction form
    505,290.87/758,031.08 = 168,351.93/x
  3. Step 3: Cross multiply
    505,290.87x = 758,031.08 × 168,351.93
  4. Step 4: Simplify right side
    505,290.87x = 127,615,994,476.23
  5. Step 5: Solve for x
    x = 127,615,994,476.23/505,290.87
  6. Step 6: Final answer
    x = 252,559.47

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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.