Home / 320,906.07-442,840.23-175,705.47

Finding the Fourth Proportional to 320,906.07, 442,840.23 and 175,705.47

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Solution

The fourth proportional to 320,906.07, 442,840.23 and 175,705.47 is: 242,467.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,906.07 : 442,840.23 = 175,705.47 : x
  2. Step 2: Convert to fraction form
    320,906.07/442,840.23 = 175,705.47/x
  3. Step 3: Cross multiply
    320,906.07x = 442,840.23 × 175,705.47
  4. Step 4: Simplify right side
    320,906.07x = 77,809,450,747.06
  5. Step 5: Solve for x
    x = 77,809,450,747.06/320,906.07
  6. Step 6: Final answer
    x = 242,467.99

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1.5x scale

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.