Home / 319,170.72-440,475.30-175,930.44

Finding the Fourth Proportional to 319,170.72, 440,475.30 and 175,930.44

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Solution

The fourth proportional to 319,170.72, 440,475.30 and 175,930.44 is: 242,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,170.72 : 440,475.30 = 175,930.44 : x
  2. Step 2: Convert to fraction form
    319,170.72/440,475.30 = 175,930.44/x
  3. Step 3: Cross multiply
    319,170.72x = 440,475.30 × 175,930.44
  4. Step 4: Simplify right side
    319,170.72x = 77,493,013,338.13
  5. Step 5: Solve for x
    x = 77,493,013,338.13/319,170.72
  6. Step 6: Final answer
    x = 242,794.87

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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.