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Finding the Fourth Proportional to 238,980.60, 358,470.90 and 227,316.60

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Solution

The fourth proportional to 238,980.60, 358,470.90 and 227,316.60 is: 340,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,980.60 : 358,470.90 = 227,316.60 : x
  2. Step 2: Convert to fraction form
    238,980.60/358,470.90 = 227,316.60/x
  3. Step 3: Cross multiply
    238,980.60x = 358,470.90 × 227,316.60
  4. Step 4: Simplify right side
    238,980.60x = 81,486,386,186.94
  5. Step 5: Solve for x
    x = 81,486,386,186.94/238,980.60
  6. Step 6: Final answer
    x = 340,974.90

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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.