Home / 329,868.22-455,220.10-186,658.20

Finding the Fourth Proportional to 329,868.22, 455,220.10 and 186,658.20

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Solution

The fourth proportional to 329,868.22, 455,220.10 and 186,658.20 is: 257,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,868.22 : 455,220.10 = 186,658.20 : x
  2. Step 2: Convert to fraction form
    329,868.22/455,220.10 = 186,658.20/x
  3. Step 3: Cross multiply
    329,868.22x = 455,220.10 × 186,658.20
  4. Step 4: Simplify right side
    329,868.22x = 84,970,564,469.82
  5. Step 5: Solve for x
    x = 84,970,564,469.82/329,868.22
  6. Step 6: Final answer
    x = 257,589.42

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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.