Home / 388,526.36-582,527.10-198,519.80

Finding the Fourth Proportional to 388,526.36, 582,527.10 and 198,519.80

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Solution

The fourth proportional to 388,526.36, 582,527.10 and 198,519.80 is: 297,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,526.36 : 582,527.10 = 198,519.80 : x
  2. Step 2: Convert to fraction form
    388,526.36/582,527.10 = 198,519.80/x
  3. Step 3: Cross multiply
    388,526.36x = 582,527.10 × 198,519.80
  4. Step 4: Simplify right side
    388,526.36x = 115,643,163,386.58
  5. Step 5: Solve for x
    x = 115,643,163,386.58/388,526.36
  6. Step 6: Final answer
    x = 297,645.60

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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.