Home / 319,604.10-479,281.55-119,815.47

Finding the Fourth Proportional to 319,604.10, 479,281.55 and 119,815.47

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Solution

The fourth proportional to 319,604.10, 479,281.55 and 119,815.47 is: 179,676.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,604.10 : 479,281.55 = 119,815.47 : x
  2. Step 2: Convert to fraction form
    319,604.10/479,281.55 = 119,815.47/x
  3. Step 3: Cross multiply
    319,604.10x = 479,281.55 × 119,815.47
  4. Step 4: Simplify right side
    319,604.10x = 57,425,344,175.58
  5. Step 5: Solve for x
    x = 57,425,344,175.58/319,604.10
  6. Step 6: Final answer
    x = 179,676.49

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1.5x scale

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.