Home / 308,721.36-462,815.90-119,314.61

Finding the Fourth Proportional to 308,721.36, 462,815.90 and 119,314.61

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Solution

The fourth proportional to 308,721.36, 462,815.90 and 119,314.61 is: 178,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,721.36 : 462,815.90 = 119,314.61 : x
  2. Step 2: Convert to fraction form
    308,721.36/462,815.90 = 119,314.61/x
  3. Step 3: Cross multiply
    308,721.36x = 462,815.90 × 119,314.61
  4. Step 4: Simplify right side
    308,721.36x = 55,220,695,699.65
  5. Step 5: Solve for x
    x = 55,220,695,699.65/308,721.36
  6. Step 6: Final answer
    x = 178,869.05

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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.