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Finding the Fourth Proportional to 460,914.48, 691,371.72 and 145,395.90

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Solution

The fourth proportional to 460,914.48, 691,371.72 and 145,395.90 is: 218,093.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,914.48 : 691,371.72 = 145,395.90 : x
  2. Step 2: Convert to fraction form
    460,914.48/691,371.72 = 145,395.90/x
  3. Step 3: Cross multiply
    460,914.48x = 691,371.72 × 145,395.90
  4. Step 4: Simplify right side
    460,914.48x = 100,522,613,463.95
  5. Step 5: Solve for x
    x = 100,522,613,463.95/460,914.48
  6. Step 6: Final answer
    x = 218,093.85

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.