Home / 454,130.46-681,190.26-138,588.30

Finding the Fourth Proportional to 454,130.46, 681,190.26 and 138,588.30

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Solution

The fourth proportional to 454,130.46, 681,190.26 and 138,588.30 is: 207,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,130.46 : 681,190.26 = 138,588.30 : x
  2. Step 2: Convert to fraction form
    454,130.46/681,190.26 = 138,588.30/x
  3. Step 3: Cross multiply
    454,130.46x = 681,190.26 × 138,588.30
  4. Step 4: Simplify right side
    454,130.46x = 94,405,000,109.96
  5. Step 5: Solve for x
    x = 94,405,000,109.96/454,130.46
  6. Step 6: Final answer
    x = 207,880.79

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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.