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Finding the Fourth Proportional to 355,538.70, 532,530.45 and 276,029.10

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Solution

The fourth proportional to 355,538.70, 532,530.45 and 276,029.10 is: 413,439.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,538.70 : 532,530.45 = 276,029.10 : x
  2. Step 2: Convert to fraction form
    355,538.70/532,530.45 = 276,029.10/x
  3. Step 3: Cross multiply
    355,538.70x = 532,530.45 × 276,029.10
  4. Step 4: Simplify right side
    355,538.70x = 146,993,900,836.10
  5. Step 5: Solve for x
    x = 146,993,900,836.10/355,538.70
  6. Step 6: Final answer
    x = 413,439.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.