Home / 319,607.06-479,285.96-119,818.40

Finding the Fourth Proportional to 319,607.06, 479,285.96 and 119,818.40

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Solution

The fourth proportional to 319,607.06, 479,285.96 and 119,818.40 is: 179,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,607.06 : 479,285.96 = 119,818.40 : x
  2. Step 2: Convert to fraction form
    319,607.06/479,285.96 = 119,818.40/x
  3. Step 3: Cross multiply
    319,607.06x = 479,285.96 × 119,818.40
  4. Step 4: Simplify right side
    319,607.06x = 57,427,273,874.14
  5. Step 5: Solve for x
    x = 57,427,273,874.14/319,607.06
  6. Step 6: Final answer
    x = 179,680.87

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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.