Home / 388,528.36-582,530.10-198,521.80

Finding the Fourth Proportional to 388,528.36, 582,530.10 and 198,521.80

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Solution

The fourth proportional to 388,528.36, 582,530.10 and 198,521.80 is: 297,648.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,528.36 : 582,530.10 = 198,521.80 : x
  2. Step 2: Convert to fraction form
    388,528.36/582,530.10 = 198,521.80/x
  3. Step 3: Cross multiply
    388,528.36x = 582,530.10 × 198,521.80
  4. Step 4: Simplify right side
    388,528.36x = 115,644,924,006.18
  5. Step 5: Solve for x
    x = 115,644,924,006.18/388,528.36
  6. Step 6: Final answer
    x = 297,648.60

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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.