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Finding the Fourth Proportional to 275,191.55, 379,763.67 and 152,702.54

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Solution

The fourth proportional to 275,191.55, 379,763.67 and 152,702.54 is: 210,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,191.55 : 379,763.67 = 152,702.54 : x
  2. Step 2: Convert to fraction form
    275,191.55/379,763.67 = 152,702.54/x
  3. Step 3: Cross multiply
    275,191.55x = 379,763.67 × 152,702.54
  4. Step 4: Simplify right side
    275,191.55x = 57,990,875,109.90
  5. Step 5: Solve for x
    x = 57,990,875,109.90/275,191.55
  6. Step 6: Final answer
    x = 210,729.13

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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.