Home / 330,309.22-455,811.42-187,070.31

Finding the Fourth Proportional to 330,309.22, 455,811.42 and 187,070.31

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Solution

The fourth proportional to 330,309.22, 455,811.42 and 187,070.31 is: 258,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,309.22 : 455,811.42 = 187,070.31 : x
  2. Step 2: Convert to fraction form
    330,309.22/455,811.42 = 187,070.31/x
  3. Step 3: Cross multiply
    330,309.22x = 455,811.42 × 187,070.31
  4. Step 4: Simplify right side
    330,309.22x = 85,268,783,640.94
  5. Step 5: Solve for x
    x = 85,268,783,640.94/330,309.22
  6. Step 6: Final answer
    x = 258,148.36

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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.