Home / 354,531.72-530,549.10-221,474.44

Finding the Fourth Proportional to 354,531.72, 530,549.10 and 221,474.44

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Solution

The fourth proportional to 354,531.72, 530,549.10 and 221,474.44 is: 331,431.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,531.72 : 530,549.10 = 221,474.44 : x
  2. Step 2: Convert to fraction form
    354,531.72/530,549.10 = 221,474.44/x
  3. Step 3: Cross multiply
    354,531.72x = 530,549.10 × 221,474.44
  4. Step 4: Simplify right side
    354,531.72x = 117,503,064,815.00
  5. Step 5: Solve for x
    x = 117,503,064,815.00/354,531.72
  6. Step 6: Final answer
    x = 331,431.74

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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.