Home / 388,328.43-582,526.30-118,517.26

Finding the Fourth Proportional to 388,328.43, 582,526.30 and 118,517.26

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Solution

The fourth proportional to 388,328.43, 582,526.30 and 118,517.26 is: 177,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,328.43 : 582,526.30 = 118,517.26 : x
  2. Step 2: Convert to fraction form
    388,328.43/582,526.30 = 118,517.26/x
  3. Step 3: Cross multiply
    388,328.43x = 582,526.30 × 118,517.26
  4. Step 4: Simplify right side
    388,328.43x = 69,039,420,953.94
  5. Step 5: Solve for x
    x = 69,039,420,953.94/388,328.43
  6. Step 6: Final answer
    x = 177,786.16

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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.