Home / 320,871.36-442,663.44-193,476.18

Finding the Fourth Proportional to 320,871.36, 442,663.44 and 193,476.18

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Solution

The fourth proportional to 320,871.36, 442,663.44 and 193,476.18 is: 266,913.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,871.36 : 442,663.44 = 193,476.18 : x
  2. Step 2: Convert to fraction form
    320,871.36/442,663.44 = 193,476.18/x
  3. Step 3: Cross multiply
    320,871.36x = 442,663.44 × 193,476.18
  4. Step 4: Simplify right side
    320,871.36x = 85,644,829,736.87
  5. Step 5: Solve for x
    x = 85,644,829,736.87/320,871.36
  6. Step 6: Final answer
    x = 266,913.29

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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.