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Finding the Fourth Proportional to 275,580.02, 380,271.06 and 154,734.50

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Solution

The fourth proportional to 275,580.02, 380,271.06 and 154,734.50 is: 213,517.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,580.02 : 380,271.06 = 154,734.50 : x
  2. Step 2: Convert to fraction form
    275,580.02/380,271.06 = 154,734.50/x
  3. Step 3: Cross multiply
    275,580.02x = 380,271.06 × 154,734.50
  4. Step 4: Simplify right side
    275,580.02x = 58,841,050,432.21
  5. Step 5: Solve for x
    x = 58,841,050,432.21/275,580.02
  6. Step 6: Final answer
    x = 213,517.12

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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.