Home / 330,218.88-455,703.84-187,006.83

Finding the Fourth Proportional to 330,218.88, 455,703.84 and 187,006.83

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Solution

The fourth proportional to 330,218.88, 455,703.84 and 187,006.83 is: 258,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,218.88 : 455,703.84 = 187,006.83 : x
  2. Step 2: Convert to fraction form
    330,218.88/455,703.84 = 187,006.83/x
  3. Step 3: Cross multiply
    330,218.88x = 455,703.84 × 187,006.83
  4. Step 4: Simplify right side
    330,218.88x = 85,219,728,828.34
  5. Step 5: Solve for x
    x = 85,219,728,828.34/330,218.88
  6. Step 6: Final answer
    x = 258,070.43

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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.