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Finding the Fourth Proportional to 505,380.06, 758,018.14 and 168,384.32

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Solution

The fourth proportional to 505,380.06, 758,018.14 and 168,384.32 is: 252,559.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,380.06 : 758,018.14 = 168,384.32 : x
  2. Step 2: Convert to fraction form
    505,380.06/758,018.14 = 168,384.32/x
  3. Step 3: Cross multiply
    505,380.06x = 758,018.14 × 168,384.32
  4. Step 4: Simplify right side
    505,380.06x = 127,638,365,261.47
  5. Step 5: Solve for x
    x = 127,638,365,261.47/505,380.06
  6. Step 6: Final answer
    x = 252,559.17

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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.