Home / 221,273.52-305,381.16-135,282.96

Finding the Fourth Proportional to 221,273.52, 305,381.16 and 135,282.96

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Solution

The fourth proportional to 221,273.52, 305,381.16 and 135,282.96 is: 186,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,273.52 : 305,381.16 = 135,282.96 : x
  2. Step 2: Convert to fraction form
    221,273.52/305,381.16 = 135,282.96/x
  3. Step 3: Cross multiply
    221,273.52x = 305,381.16 × 135,282.96
  4. Step 4: Simplify right side
    221,273.52x = 41,312,867,253.03
  5. Step 5: Solve for x
    x = 41,312,867,253.03/221,273.52
  6. Step 6: Final answer
    x = 186,704.98

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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.