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Finding the Fourth Proportional to 293,490.40, 440,408.40 and 106,520.80

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Solution

The fourth proportional to 293,490.40, 440,408.40 and 106,520.80 is: 159,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,490.40 : 440,408.40 = 106,520.80 : x
  2. Step 2: Convert to fraction form
    293,490.40/440,408.40 = 106,520.80/x
  3. Step 3: Cross multiply
    293,490.40x = 440,408.40 × 106,520.80
  4. Step 4: Simplify right side
    293,490.40x = 46,912,655,094.72
  5. Step 5: Solve for x
    x = 46,912,655,094.72/293,490.40
  6. Step 6: Final answer
    x = 159,843.92

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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.