Home / 423,556.98-635,148.96-198,981.24

Finding the Fourth Proportional to 423,556.98, 635,148.96 and 198,981.24

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Solution

The fourth proportional to 423,556.98, 635,148.96 and 198,981.24 is: 298,384.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,556.98 : 635,148.96 = 198,981.24 : x
  2. Step 2: Convert to fraction form
    423,556.98/635,148.96 = 198,981.24/x
  3. Step 3: Cross multiply
    423,556.98x = 635,148.96 × 198,981.24
  4. Step 4: Simplify right side
    423,556.98x = 126,382,727,645.51
  5. Step 5: Solve for x
    x = 126,382,727,645.51/423,556.98
  6. Step 6: Final answer
    x = 298,384.24

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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.