Home / 330,745.20-456,390.36-187,476.72

Finding the Fourth Proportional to 330,745.20, 456,390.36 and 187,476.72

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Solution

The fourth proportional to 330,745.20, 456,390.36 and 187,476.72 is: 258,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,745.20 : 456,390.36 = 187,476.72 : x
  2. Step 2: Convert to fraction form
    330,745.20/456,390.36 = 187,476.72/x
  3. Step 3: Cross multiply
    330,745.20x = 456,390.36 × 187,476.72
  4. Step 4: Simplify right side
    330,745.20x = 85,562,567,732.42
  5. Step 5: Solve for x
    x = 85,562,567,732.42/330,745.20
  6. Step 6: Final answer
    x = 258,696.32

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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.