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Finding the Fourth Proportional to 505,607.13, 758,514.51 and 206,088.93

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Solution

The fourth proportional to 505,607.13, 758,514.51 and 206,088.93 is: 309,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,607.13 : 758,514.51 = 206,088.93 : x
  2. Step 2: Convert to fraction form
    505,607.13/758,514.51 = 206,088.93/x
  3. Step 3: Cross multiply
    505,607.13x = 758,514.51 × 206,088.93
  4. Step 4: Simplify right side
    505,607.13x = 156,321,443,755.37
  5. Step 5: Solve for x
    x = 156,321,443,755.37/505,607.13
  6. Step 6: Final answer
    x = 309,175.71

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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.