Home / 320,742.46-442,638.49-177,502.55

Finding the Fourth Proportional to 320,742.46, 442,638.49 and 177,502.55

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Solution

The fourth proportional to 320,742.46, 442,638.49 and 177,502.55 is: 244,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,742.46 : 442,638.49 = 177,502.55 : x
  2. Step 2: Convert to fraction form
    320,742.46/442,638.49 = 177,502.55/x
  3. Step 3: Cross multiply
    320,742.46x = 442,638.49 × 177,502.55
  4. Step 4: Simplify right side
    320,742.46x = 78,569,460,868.86
  5. Step 5: Solve for x
    x = 78,569,460,868.86/320,742.46
  6. Step 6: Final answer
    x = 244,961.21

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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.