Home / 205,713.10-308,569.65-197,839.90

Finding the Fourth Proportional to 205,713.10, 308,569.65 and 197,839.90

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Solution

The fourth proportional to 205,713.10, 308,569.65 and 197,839.90 is: 296,759.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,713.10 : 308,569.65 = 197,839.90 : x
  2. Step 2: Convert to fraction form
    205,713.10/308,569.65 = 197,839.90/x
  3. Step 3: Cross multiply
    205,713.10x = 308,569.65 × 197,839.90
  4. Step 4: Simplify right side
    205,713.10x = 61,047,388,699.04
  5. Step 5: Solve for x
    x = 61,047,388,699.04/205,713.10
  6. Step 6: Final answer
    x = 296,759.85

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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.