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Finding the Fourth Proportional to 505,565.88, 758,298.42 and 131,588.92

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Solution

The fourth proportional to 505,565.88, 758,298.42 and 131,588.92 is: 197,370.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,565.88 : 758,298.42 = 131,588.92 : x
  2. Step 2: Convert to fraction form
    505,565.88/758,298.42 = 131,588.92/x
  3. Step 3: Cross multiply
    505,565.88x = 758,298.42 × 131,588.92
  4. Step 4: Simplify right side
    505,565.88x = 99,783,670,125.51
  5. Step 5: Solve for x
    x = 99,783,670,125.51/505,565.88
  6. Step 6: Final answer
    x = 197,370.26

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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.