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Finding the Fourth Proportional to 293,165.60, 439,820.40 and 82,800.80

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Solution

The fourth proportional to 293,165.60, 439,820.40 and 82,800.80 is: 124,221.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,165.60 : 439,820.40 = 82,800.80 : x
  2. Step 2: Convert to fraction form
    293,165.60/439,820.40 = 82,800.80/x
  3. Step 3: Cross multiply
    293,165.60x = 439,820.40 × 82,800.80
  4. Step 4: Simplify right side
    293,165.60x = 36,417,480,976.32
  5. Step 5: Solve for x
    x = 36,417,480,976.32/293,165.60
  6. Step 6: Final answer
    x = 124,221.54

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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.