Home / 320,648.04-442,507.34-177,405.76

Finding the Fourth Proportional to 320,648.04, 442,507.34 and 177,405.76

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Solution

The fourth proportional to 320,648.04, 442,507.34 and 177,405.76 is: 244,827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,648.04 : 442,507.34 = 177,405.76 : x
  2. Step 2: Convert to fraction form
    320,648.04/442,507.34 = 177,405.76/x
  3. Step 3: Cross multiply
    320,648.04x = 442,507.34 × 177,405.76
  4. Step 4: Simplify right side
    320,648.04x = 78,503,350,958.28
  5. Step 5: Solve for x
    x = 78,503,350,958.28/320,648.04
  6. Step 6: Final answer
    x = 244,827.17

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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.