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Finding the Fourth Proportional to 454,635.50, 627,397.03 and 253,431.50

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Solution

The fourth proportional to 454,635.50, 627,397.03 and 253,431.50 is: 349,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,635.50 : 627,397.03 = 253,431.50 : x
  2. Step 2: Convert to fraction form
    454,635.50/627,397.03 = 253,431.50/x
  3. Step 3: Cross multiply
    454,635.50x = 627,397.03 × 253,431.50
  4. Step 4: Simplify right side
    454,635.50x = 159,002,170,408.45
  5. Step 5: Solve for x
    x = 159,002,170,408.45/454,635.50
  6. Step 6: Final answer
    x = 349,735.49

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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.