Home / 308,890.62-426,277.17-172,923.98

Finding the Fourth Proportional to 308,890.62, 426,277.17 and 172,923.98

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Solution

The fourth proportional to 308,890.62, 426,277.17 and 172,923.98 is: 238,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,890.62 : 426,277.17 = 172,923.98 : x
  2. Step 2: Convert to fraction form
    308,890.62/426,277.17 = 172,923.98/x
  3. Step 3: Cross multiply
    308,890.62x = 426,277.17 × 172,923.98
  4. Step 4: Simplify right side
    308,890.62x = 73,713,542,688.15
  5. Step 5: Solve for x
    x = 73,713,542,688.15/308,890.62
  6. Step 6: Final answer
    x = 238,639.63

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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.