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Finding the Fourth Proportional to 376,924.32, 520,617.24 and 281,854.08

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Solution

The fourth proportional to 376,924.32, 520,617.24 and 281,854.08 is: 389,303.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,924.32 : 520,617.24 = 281,854.08 : x
  2. Step 2: Convert to fraction form
    376,924.32/520,617.24 = 281,854.08/x
  3. Step 3: Cross multiply
    376,924.32x = 520,617.24 × 281,854.08
  4. Step 4: Simplify right side
    376,924.32x = 146,738,093,212.34
  5. Step 5: Solve for x
    x = 146,738,093,212.34/376,924.32
  6. Step 6: Final answer
    x = 389,303.86

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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.