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Finding the Fourth Proportional to 376,893.69, 520,157.55 and 223,933.16

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Solution

The fourth proportional to 376,893.69, 520,157.55 and 223,933.16 is: 309,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,893.69 : 520,157.55 = 223,933.16 : x
  2. Step 2: Convert to fraction form
    376,893.69/520,157.55 = 223,933.16/x
  3. Step 3: Cross multiply
    376,893.69x = 520,157.55 × 223,933.16
  4. Step 4: Simplify right side
    376,893.69x = 116,480,521,268.57
  5. Step 5: Solve for x
    x = 116,480,521,268.57/376,893.69
  6. Step 6: Final answer
    x = 309,054.05

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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.