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Finding the Fourth Proportional to 388,809.27, 536,568.17 and 227,649.24

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Solution

The fourth proportional to 388,809.27, 536,568.17 and 227,649.24 is: 314,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,809.27 : 536,568.17 = 227,649.24 : x
  2. Step 2: Convert to fraction form
    388,809.27/536,568.17 = 227,649.24/x
  3. Step 3: Cross multiply
    388,809.27x = 536,568.17 × 227,649.24
  4. Step 4: Simplify right side
    388,809.27x = 122,149,334,970.45
  5. Step 5: Solve for x
    x = 122,149,334,970.45/388,809.27
  6. Step 6: Final answer
    x = 314,162.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.