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Finding the Fourth Proportional to 376,892.19, 520,155.48 and 223,931.64

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Solution

The fourth proportional to 376,892.19, 520,155.48 and 223,931.64 is: 309,051.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,892.19 : 520,155.48 = 223,931.64 : x
  2. Step 2: Convert to fraction form
    376,892.19/520,155.48 = 223,931.64/x
  3. Step 3: Cross multiply
    376,892.19x = 520,155.48 × 223,931.64
  4. Step 4: Simplify right side
    376,892.19x = 116,479,269,691.39
  5. Step 5: Solve for x
    x = 116,479,269,691.39/376,892.19
  6. Step 6: Final answer
    x = 309,051.96

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1.5x scale

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.