Home / 505,261.18-757,445.86-205,992.10

Finding the Fourth Proportional to 505,261.18, 757,445.86 and 205,992.10

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Solution

The fourth proportional to 505,261.18, 757,445.86 and 205,992.10 is: 308,806.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,261.18 : 757,445.86 = 205,992.10 : x
  2. Step 2: Convert to fraction form
    505,261.18/757,445.86 = 205,992.10/x
  3. Step 3: Cross multiply
    505,261.18x = 757,445.86 × 205,992.10
  4. Step 4: Simplify right side
    505,261.18x = 156,027,863,337.71
  5. Step 5: Solve for x
    x = 156,027,863,337.71/505,261.18
  6. Step 6: Final answer
    x = 308,806.36

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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.