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Finding the Fourth Proportional to 293,480.80, 440,221.20 and 251,490.40

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Solution

The fourth proportional to 293,480.80, 440,221.20 and 251,490.40 is: 377,235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,480.80 : 440,221.20 = 251,490.40 : x
  2. Step 2: Convert to fraction form
    293,480.80/440,221.20 = 251,490.40/x
  3. Step 3: Cross multiply
    293,480.80x = 440,221.20 × 251,490.40
  4. Step 4: Simplify right side
    293,480.80x = 110,711,405,676.48
  5. Step 5: Solve for x
    x = 110,711,405,676.48/293,480.80
  6. Step 6: Final answer
    x = 377,235.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.