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Finding the Fourth Proportional to 445,470.90, 667,911.15 and 245,886.90

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Solution

The fourth proportional to 445,470.90, 667,911.15 and 245,886.90 is: 368,667.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,470.90 : 667,911.15 = 245,886.90 : x
  2. Step 2: Convert to fraction form
    445,470.90/667,911.15 = 245,886.90/x
  3. Step 3: Cross multiply
    445,470.90x = 667,911.15 × 245,886.90
  4. Step 4: Simplify right side
    445,470.90x = 164,230,602,148.94
  5. Step 5: Solve for x
    x = 164,230,602,148.94/445,470.90
  6. Step 6: Final answer
    x = 368,667.41

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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.