Home / 320,871.73-442,663.96-193,476.55

Finding the Fourth Proportional to 320,871.73, 442,663.96 and 193,476.55

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Solution

The fourth proportional to 320,871.73, 442,663.96 and 193,476.55 is: 266,913.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,871.73 : 442,663.96 = 193,476.55 : x
  2. Step 2: Convert to fraction form
    320,871.73/442,663.96 = 193,476.55/x
  3. Step 3: Cross multiply
    320,871.73x = 442,663.96 × 193,476.55
  4. Step 4: Simplify right side
    320,871.73x = 85,645,096,222.55
  5. Step 5: Solve for x
    x = 85,645,096,222.55/320,871.73
  6. Step 6: Final answer
    x = 266,913.81

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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.