Home / 221,434.80-331,277.40-192,177.60

Finding the Fourth Proportional to 221,434.80, 331,277.40 and 192,177.60

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Solution

The fourth proportional to 221,434.80, 331,277.40 and 192,177.60 is: 287,507.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,434.80 : 331,277.40 = 192,177.60 : x
  2. Step 2: Convert to fraction form
    221,434.80/331,277.40 = 192,177.60/x
  3. Step 3: Cross multiply
    221,434.80x = 331,277.40 × 192,177.60
  4. Step 4: Simplify right side
    221,434.80x = 63,664,095,666.24
  5. Step 5: Solve for x
    x = 63,664,095,666.24/221,434.80
  6. Step 6: Final answer
    x = 287,507.18

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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.