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Finding the Fourth Proportional to 355,907.62, 491,152.54 and 194,762.68

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Solution

The fourth proportional to 355,907.62, 491,152.54 and 194,762.68 is: 268,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,907.62 : 491,152.54 = 194,762.68 : x
  2. Step 2: Convert to fraction form
    355,907.62/491,152.54 = 194,762.68/x
  3. Step 3: Cross multiply
    355,907.62x = 491,152.54 × 194,762.68
  4. Step 4: Simplify right side
    355,907.62x = 95,658,184,979.21
  5. Step 5: Solve for x
    x = 95,658,184,979.21/355,907.62
  6. Step 6: Final answer
    x = 268,772.51

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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.