Home / 258,766.20-388,034.10-118,567.80

Finding the Fourth Proportional to 258,766.20, 388,034.10 and 118,567.80

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Solution

The fourth proportional to 258,766.20, 388,034.10 and 118,567.80 is: 177,798.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,766.20 : 388,034.10 = 118,567.80 : x
  2. Step 2: Convert to fraction form
    258,766.20/388,034.10 = 118,567.80/x
  3. Step 3: Cross multiply
    258,766.20x = 388,034.10 × 118,567.80
  4. Step 4: Simplify right side
    258,766.20x = 46,008,349,561.98
  5. Step 5: Solve for x
    x = 46,008,349,561.98/258,766.20
  6. Step 6: Final answer
    x = 177,798.91

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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.