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Finding the Fourth Proportional to 388,668.66, 536,497.11 and 227,575.50

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Solution

The fourth proportional to 388,668.66, 536,497.11 and 227,575.50 is: 314,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,668.66 : 536,497.11 = 227,575.50 : x
  2. Step 2: Convert to fraction form
    388,668.66/536,497.11 = 227,575.50/x
  3. Step 3: Cross multiply
    388,668.66x = 536,497.11 × 227,575.50
  4. Step 4: Simplify right side
    388,668.66x = 122,093,598,056.81
  5. Step 5: Solve for x
    x = 122,093,598,056.81/388,668.66
  6. Step 6: Final answer
    x = 314,132.86

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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.