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Finding the Fourth Proportional to 299,485.48, 413,290.82 and 163,520.60

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Solution

The fourth proportional to 299,485.48, 413,290.82 and 163,520.60 is: 225,658.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,485.48 : 413,290.82 = 163,520.60 : x
  2. Step 2: Convert to fraction form
    299,485.48/413,290.82 = 163,520.60/x
  3. Step 3: Cross multiply
    299,485.48x = 413,290.82 × 163,520.60
  4. Step 4: Simplify right side
    299,485.48x = 67,581,562,860.89
  5. Step 5: Solve for x
    x = 67,581,562,860.89/299,485.48
  6. Step 6: Final answer
    x = 225,658.90

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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.