Home / 319,607.28-479,286.32-119,818.76

Finding the Fourth Proportional to 319,607.28, 479,286.32 and 119,818.76

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Solution

The fourth proportional to 319,607.28, 479,286.32 and 119,818.76 is: 179,681.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,607.28 : 479,286.32 = 119,818.76 : x
  2. Step 2: Convert to fraction form
    319,607.28/479,286.32 = 119,818.76/x
  3. Step 3: Cross multiply
    319,607.28x = 479,286.32 × 119,818.76
  4. Step 4: Simplify right side
    319,607.28x = 57,427,489,551.84
  5. Step 5: Solve for x
    x = 57,427,489,551.84/319,607.28
  6. Step 6: Final answer
    x = 179,681.42

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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.