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Finding the Fourth Proportional to 388,491.12, 582,573.60 and 163,952.64

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Solution

The fourth proportional to 388,491.12, 582,573.60 and 163,952.64 is: 245,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,491.12 : 582,573.60 = 163,952.64 : x
  2. Step 2: Convert to fraction form
    388,491.12/582,573.60 = 163,952.64/x
  3. Step 3: Cross multiply
    388,491.12x = 582,573.60 × 163,952.64
  4. Step 4: Simplify right side
    388,491.12x = 95,514,479,714.30
  5. Step 5: Solve for x
    x = 95,514,479,714.30/388,491.12
  6. Step 6: Final answer
    x = 245,860.14

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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.