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Finding the Fourth Proportional to 539,173.67, 808,864.19 and 206,723.75

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Solution

The fourth proportional to 539,173.67, 808,864.19 and 206,723.75 is: 310,125.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,173.67 : 808,864.19 = 206,723.75 : x
  2. Step 2: Convert to fraction form
    539,173.67/808,864.19 = 206,723.75/x
  3. Step 3: Cross multiply
    539,173.67x = 808,864.19 × 206,723.75
  4. Step 4: Simplify right side
    539,173.67x = 167,211,437,563.89
  5. Step 5: Solve for x
    x = 167,211,437,563.89/539,173.67
  6. Step 6: Final answer
    x = 310,125.38

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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.