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Finding the Fourth Proportional to 457,199.64, 630,928.83 and 253,249.89

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Solution

The fourth proportional to 457,199.64, 630,928.83 and 253,249.89 is: 349,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,199.64 : 630,928.83 = 253,249.89 : x
  2. Step 2: Convert to fraction form
    457,199.64/630,928.83 = 253,249.89/x
  3. Step 3: Cross multiply
    457,199.64x = 630,928.83 × 253,249.89
  4. Step 4: Simplify right side
    457,199.64x = 159,782,656,795.33
  5. Step 5: Solve for x
    x = 159,782,656,795.33/457,199.64
  6. Step 6: Final answer
    x = 349,481.15

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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.