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Finding the Fourth Proportional to 454,968.32, 627,869.76 and 253,760

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Solution

The fourth proportional to 454,968.32, 627,869.76 and 253,760 is: 350,196.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,968.32 : 627,869.76 = 253,760 : x
  2. Step 2: Convert to fraction form
    454,968.32/627,869.76 = 253,760/x
  3. Step 3: Cross multiply
    454,968.32x = 627,869.76 × 253,760
  4. Step 4: Simplify right side
    454,968.32x = 159,328,230,297.60
  5. Step 5: Solve for x
    x = 159,328,230,297.60/454,968.32
  6. Step 6: Final answer
    x = 350,196.32

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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.