Home / 258,760.56-388,185.12-118,531.20

Finding the Fourth Proportional to 258,760.56, 388,185.12 and 118,531.20

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Solution

The fourth proportional to 258,760.56, 388,185.12 and 118,531.20 is: 177,817.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,760.56 : 388,185.12 = 118,531.20 : x
  2. Step 2: Convert to fraction form
    258,760.56/388,185.12 = 118,531.20/x
  3. Step 3: Cross multiply
    258,760.56x = 388,185.12 × 118,531.20
  4. Step 4: Simplify right side
    258,760.56x = 46,012,048,095.74
  5. Step 5: Solve for x
    x = 46,012,048,095.74/258,760.56
  6. Step 6: Final answer
    x = 177,817.08

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1.5x scale

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.