Home / 354,531.54-530,549.10-221,474.46

Finding the Fourth Proportional to 354,531.54, 530,549.10 and 221,474.46

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Solution

The fourth proportional to 354,531.54, 530,549.10 and 221,474.46 is: 331,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,531.54 : 530,549.10 = 221,474.46 : x
  2. Step 2: Convert to fraction form
    354,531.54/530,549.10 = 221,474.46/x
  3. Step 3: Cross multiply
    354,531.54x = 530,549.10 × 221,474.46
  4. Step 4: Simplify right side
    354,531.54x = 117,503,075,425.99
  5. Step 5: Solve for x
    x = 117,503,075,425.99/354,531.54
  6. Step 6: Final answer
    x = 331,431.94

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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.