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Finding the Fourth Proportional to 352,393.44, 485,765.76 and 276,810.72

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Solution

The fourth proportional to 352,393.44, 485,765.76 and 276,810.72 is: 381,576.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,393.44 : 485,765.76 = 276,810.72 : x
  2. Step 2: Convert to fraction form
    352,393.44/485,765.76 = 276,810.72/x
  3. Step 3: Cross multiply
    352,393.44x = 485,765.76 × 276,810.72
  4. Step 4: Simplify right side
    352,393.44x = 134,465,169,776.95
  5. Step 5: Solve for x
    x = 134,465,169,776.95/352,393.44
  6. Step 6: Final answer
    x = 381,576.82

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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.