Home / 320,386.38-442,122.33-184,401.48

Finding the Fourth Proportional to 320,386.38, 442,122.33 and 184,401.48

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Solution

The fourth proportional to 320,386.38, 442,122.33 and 184,401.48 is: 254,467.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,386.38 : 442,122.33 = 184,401.48 : x
  2. Step 2: Convert to fraction form
    320,386.38/442,122.33 = 184,401.48/x
  3. Step 3: Cross multiply
    320,386.38x = 442,122.33 × 184,401.48
  4. Step 4: Simplify right side
    320,386.38x = 81,528,011,993.05
  5. Step 5: Solve for x
    x = 81,528,011,993.05/320,386.38
  6. Step 6: Final answer
    x = 254,467.78

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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.