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Finding the Fourth Proportional to 379,046.25, 522,460.89 and 268,702.50

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Solution

The fourth proportional to 379,046.25, 522,460.89 and 268,702.50 is: 370,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,046.25 : 522,460.89 = 268,702.50 : x
  2. Step 2: Convert to fraction form
    379,046.25/522,460.89 = 268,702.50/x
  3. Step 3: Cross multiply
    379,046.25x = 522,460.89 × 268,702.50
  4. Step 4: Simplify right side
    379,046.25x = 140,386,547,295.23
  5. Step 5: Solve for x
    x = 140,386,547,295.23/379,046.25
  6. Step 6: Final answer
    x = 370,367.86

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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.