Home / 236,211.80-354,366.30-78,553.40

Finding the Fourth Proportional to 236,211.80, 354,366.30 and 78,553.40

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Solution

The fourth proportional to 236,211.80, 354,366.30 and 78,553.40 is: 117,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,211.80 : 354,366.30 = 78,553.40 : x
  2. Step 2: Convert to fraction form
    236,211.80/354,366.30 = 78,553.40/x
  3. Step 3: Cross multiply
    236,211.80x = 354,366.30 × 78,553.40
  4. Step 4: Simplify right side
    236,211.80x = 27,836,677,710.42
  5. Step 5: Solve for x
    x = 27,836,677,710.42/236,211.80
  6. Step 6: Final answer
    x = 117,846.26

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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.