Home / 258,729.20-356,853.84-228,461.12

Finding the Fourth Proportional to 258,729.20, 356,853.84 and 228,461.12

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Solution

The fourth proportional to 258,729.20, 356,853.84 and 228,461.12 is: 315,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,729.20 : 356,853.84 = 228,461.12 : x
  2. Step 2: Convert to fraction form
    258,729.20/356,853.84 = 228,461.12/x
  3. Step 3: Cross multiply
    258,729.20x = 356,853.84 × 228,461.12
  4. Step 4: Simplify right side
    258,729.20x = 81,527,227,962.70
  5. Step 5: Solve for x
    x = 81,527,227,962.70/258,729.20
  6. Step 6: Final answer
    x = 315,106.40

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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.