Home / 258,977.74-388,824.36-178,827.61

Finding the Fourth Proportional to 258,977.74, 388,824.36 and 178,827.61

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Solution

The fourth proportional to 258,977.74, 388,824.36 and 178,827.61 is: 268,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,977.74 : 388,824.36 = 178,827.61 : x
  2. Step 2: Convert to fraction form
    258,977.74/388,824.36 = 178,827.61/x
  3. Step 3: Cross multiply
    258,977.74x = 388,824.36 × 178,827.61
  4. Step 4: Simplify right side
    258,977.74x = 69,532,531,008.58
  5. Step 5: Solve for x
    x = 69,532,531,008.58/258,977.74
  6. Step 6: Final answer
    x = 268,488.45

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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.