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Finding the Fourth Proportional to 505,625.64, 758,145.03 and 239,383.90

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Solution

The fourth proportional to 505,625.64, 758,145.03 and 239,383.90 is: 358,936.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,625.64 : 758,145.03 = 239,383.90 : x
  2. Step 2: Convert to fraction form
    505,625.64/758,145.03 = 239,383.90/x
  3. Step 3: Cross multiply
    505,625.64x = 758,145.03 × 239,383.90
  4. Step 4: Simplify right side
    505,625.64x = 181,487,714,047.02
  5. Step 5: Solve for x
    x = 181,487,714,047.02/505,625.64
  6. Step 6: Final answer
    x = 358,936.93

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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.