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Finding the Fourth Proportional to 268,951.92, 371,137.32 and 155,752.80

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Solution

The fourth proportional to 268,951.92, 371,137.32 and 155,752.80 is: 214,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,951.92 : 371,137.32 = 155,752.80 : x
  2. Step 2: Convert to fraction form
    268,951.92/371,137.32 = 155,752.80/x
  3. Step 3: Cross multiply
    268,951.92x = 371,137.32 × 155,752.80
  4. Step 4: Simplify right side
    268,951.92x = 57,805,676,774.50
  5. Step 5: Solve for x
    x = 57,805,676,774.50/268,951.92
  6. Step 6: Final answer
    x = 214,929.41

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1.5x scale

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.