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Finding the Fourth Proportional to 356,358.57, 534,621.65 and 103,644.64

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Solution

The fourth proportional to 356,358.57, 534,621.65 and 103,644.64 is: 155,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,358.57 : 534,621.65 = 103,644.64 : x
  2. Step 2: Convert to fraction form
    356,358.57/534,621.65 = 103,644.64/x
  3. Step 3: Cross multiply
    356,358.57x = 534,621.65 × 103,644.64
  4. Step 4: Simplify right side
    356,358.57x = 55,410,668,450.46
  5. Step 5: Solve for x
    x = 55,410,668,450.46/356,358.57
  6. Step 6: Final answer
    x = 155,491.33

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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.