Home / 492,827.76-739,128.60-137,866.80

Finding the Fourth Proportional to 492,827.76, 739,128.60 and 137,866.80

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Solution

The fourth proportional to 492,827.76, 739,128.60 and 137,866.80 is: 206,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,827.76 : 739,128.60 = 137,866.80 : x
  2. Step 2: Convert to fraction form
    492,827.76/739,128.60 = 137,866.80/x
  3. Step 3: Cross multiply
    492,827.76x = 739,128.60 × 137,866.80
  4. Step 4: Simplify right side
    492,827.76x = 101,901,294,870.48
  5. Step 5: Solve for x
    x = 101,901,294,870.48/492,827.76
  6. Step 6: Final answer
    x = 206,768.58

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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.