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Finding the Fourth Proportional to 275,493.60, 380,219.54 and 153,013.50

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Solution

The fourth proportional to 275,493.60, 380,219.54 and 153,013.50 is: 211,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,493.60 : 380,219.54 = 153,013.50 : x
  2. Step 2: Convert to fraction form
    275,493.60/380,219.54 = 153,013.50/x
  3. Step 3: Cross multiply
    275,493.60x = 380,219.54 × 153,013.50
  4. Step 4: Simplify right side
    275,493.60x = 58,178,721,818.72
  5. Step 5: Solve for x
    x = 58,178,721,818.72/275,493.60
  6. Step 6: Final answer
    x = 211,179.94

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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.