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Finding the Fourth Proportional to 297,115.48, 445,511.93 and 134,920.47

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Solution

The fourth proportional to 297,115.48, 445,511.93 and 134,920.47 is: 202,307.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,115.48 : 445,511.93 = 134,920.47 : x
  2. Step 2: Convert to fraction form
    297,115.48/445,511.93 = 134,920.47/x
  3. Step 3: Cross multiply
    297,115.48x = 445,511.93 × 134,920.47
  4. Step 4: Simplify right side
    297,115.48x = 60,108,680,470.45
  5. Step 5: Solve for x
    x = 60,108,680,470.45/297,115.48
  6. Step 6: Final answer
    x = 202,307.47

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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.