Home / 320,857.82-442,783.93-175,673.02

Finding the Fourth Proportional to 320,857.82, 442,783.93 and 175,673.02

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Solution

The fourth proportional to 320,857.82, 442,783.93 and 175,673.02 is: 242,428.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,857.82 : 442,783.93 = 175,673.02 : x
  2. Step 2: Convert to fraction form
    320,857.82/442,783.93 = 175,673.02/x
  3. Step 3: Cross multiply
    320,857.82x = 442,783.93 × 175,673.02
  4. Step 4: Simplify right side
    320,857.82x = 77,785,190,190.57
  5. Step 5: Solve for x
    x = 77,785,190,190.57/320,857.82
  6. Step 6: Final answer
    x = 242,428.84

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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.