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Finding the Fourth Proportional to 377,277.84, 520,633.20 and 213,964.32

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Solution

The fourth proportional to 377,277.84, 520,633.20 and 213,964.32 is: 295,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,277.84 : 520,633.20 = 213,964.32 : x
  2. Step 2: Convert to fraction form
    377,277.84/520,633.20 = 213,964.32/x
  3. Step 3: Cross multiply
    377,277.84x = 520,633.20 × 213,964.32
  4. Step 4: Simplify right side
    377,277.84x = 111,396,928,607.42
  5. Step 5: Solve for x
    x = 111,396,928,607.42/377,277.84
  6. Step 6: Final answer
    x = 295,264.97

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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.