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Finding the Fourth Proportional to 355,644.80, 532,300.80 and 276,329.60

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Solution

The fourth proportional to 355,644.80, 532,300.80 and 276,329.60 is: 413,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,644.80 : 532,300.80 = 276,329.60 : x
  2. Step 2: Convert to fraction form
    355,644.80/532,300.80 = 276,329.60/x
  3. Step 3: Cross multiply
    355,644.80x = 532,300.80 × 276,329.60
  4. Step 4: Simplify right side
    355,644.80x = 147,090,467,143.68
  5. Step 5: Solve for x
    x = 147,090,467,143.68/355,644.80
  6. Step 6: Final answer
    x = 413,588.13

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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.