Home / 330,288.33-455,782.65-187,049.40

Finding the Fourth Proportional to 330,288.33, 455,782.65 and 187,049.40

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Solution

The fourth proportional to 330,288.33, 455,782.65 and 187,049.40 is: 258,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,288.33 : 455,782.65 = 187,049.40 : x
  2. Step 2: Convert to fraction form
    330,288.33/455,782.65 = 187,049.40/x
  3. Step 3: Cross multiply
    330,288.33x = 455,782.65 × 187,049.40
  4. Step 4: Simplify right side
    330,288.33x = 85,253,871,366.07
  5. Step 5: Solve for x
    x = 85,253,871,366.07/330,288.33
  6. Step 6: Final answer
    x = 258,119.54

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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.