Home / 308,815.74-426,431.69-194,285.29

Finding the Fourth Proportional to 308,815.74, 426,431.69 and 194,285.29

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Solution

The fourth proportional to 308,815.74, 426,431.69 and 194,285.29 is: 268,281.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,815.74 : 426,431.69 = 194,285.29 : x
  2. Step 2: Convert to fraction form
    308,815.74/426,431.69 = 194,285.29/x
  3. Step 3: Cross multiply
    308,815.74x = 426,431.69 × 194,285.29
  4. Step 4: Simplify right side
    308,815.74x = 82,849,403,976.47
  5. Step 5: Solve for x
    x = 82,849,403,976.47/308,815.74
  6. Step 6: Final answer
    x = 268,281.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.