Home / 348,326.40-521,107.20-302,092.80

Finding the Fourth Proportional to 348,326.40, 521,107.20 and 302,092.80

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Solution

The fourth proportional to 348,326.40, 521,107.20 and 302,092.80 is: 451,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,326.40 : 521,107.20 = 302,092.80 : x
  2. Step 2: Convert to fraction form
    348,326.40/521,107.20 = 302,092.80/x
  3. Step 3: Cross multiply
    348,326.40x = 521,107.20 × 302,092.80
  4. Step 4: Simplify right side
    348,326.40x = 157,422,733,148.16
  5. Step 5: Solve for x
    x = 157,422,733,148.16/348,326.40
  6. Step 6: Final answer
    x = 451,940.29

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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.