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Finding the Fourth Proportional to 219,322.42, 328,933.04 and 69,534.79

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Solution

The fourth proportional to 219,322.42, 328,933.04 and 69,534.79 is: 104,286.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,322.42 : 328,933.04 = 69,534.79 : x
  2. Step 2: Convert to fraction form
    219,322.42/328,933.04 = 69,534.79/x
  3. Step 3: Cross multiply
    219,322.42x = 328,933.04 × 69,534.79
  4. Step 4: Simplify right side
    219,322.42x = 22,872,288,690.46
  5. Step 5: Solve for x
    x = 22,872,288,690.46/219,322.42
  6. Step 6: Final answer
    x = 104,286.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.